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• 01:30, 3 August 2010 (hist) (diff) Compound Interest-10th Grade-4 ‎ (top)
• 01:25, 3 August 2010 (hist) (diff) N Compound Interest-10th Grade-4 ‎ (Created page with ''''Mr. Harrison bought a car for $400000. If the price of the car after<br> 3 years depreciates to $291600, find the rate of depreciation.''' '''Solution:''' Let the rate of dep…')
• 01:17, 3 August 2010 (hist) (diff) N Compound Interest-10th Grade-3 ‎ (Created page with ''''Find the nominal rate of interest which is equivalent to 8% effective<br> rate of interest when intrest is compounded half-yearly.''' '''Solution:''' Let the nominal rate = R…') (top)
• 01:09, 3 August 2010 (hist) (diff) N Compound Interest-10th Grade-2 ‎ (Created page with ''''The nominal rate is 8% compounded quarterly. Find the effective rate.''' '''Solution:''' Nominal rate (R %) = 8% Number of conversion period in a year (n) = 4 Effective rat…') (top)
• 05:27, 2 August 2010 (hist) (diff) N Compound Interest-10th Grade-1 ‎ (Created page with ''''Mr. Bill is paid at the rate of 5% per annum compound interest payable half-yearly.<br> What rate of interest per annum does he get?''' '''Solution:''' Let the principal (P) …') (top)
• 05:51, 30 July 2010 (hist) (diff) N Simple Interest-10th grade-6 ‎ (Created page with ''''Mr. Tan kept $400 for 4 years and $500 for 5 years. The simple interest on <br>both of these together came to $196. The rate of interest per annum on <br>$400 was 1 ½ times o…') (top)
• 03:00, 26 July 2010 (hist) (diff) N Simple Interest-10th grade-5 ‎ (Created page with ''''Mr. Timberlake took loan of $40,000 at 10% simple interest per annum from a <br>Bank. After 2 years he paid $20,000 to the bank. How much will he have to <br>pay if he clears …') (top)
• 02:31, 26 July 2010 (hist) (diff) N Simple Interest-10th grade-4 ‎ (Created page with ''''Craig finds that a fall of interest from 4% to 3 ¾% per annum diminishes<br> his yearly income by $60. What is his capital?''' '''Solution:''' (4 – 3 ¾) % = ¼ % By the …') (top)
• 02:21, 26 July 2010 (hist) (diff) N Simple Interest-10th grade-3 ‎ (Created page with ''''Mr. Todd gets interest keeping money in the bank. The interest on $600 <br>at 6% for a certain time and that on $800 at 8% for 2 years more are <br>together $428. For what per…') (top)
• 02:43, 24 July 2010 (hist) (diff) N Simple Interest-10th grade-2 ‎ (Created page with ''''Mr. Tan wants to invest in a bank. He wants to know what sum of money <br>will amount to $720 in 4 years at the rate at which a sum of money<br> doubles itself in 20 years.'''…') (top)
• 02:29, 24 July 2010 (hist) (diff) N Simple Interest-10th grade-1 ‎ (Created page with ''''Mr. Daniel deposited $3500 in a bank. Find the interest on $3500 <br>from the 5th January to 31st May, 1964 at 6%.''' '''Solution:''' Here the number of days during the perio…') (top)
• 02:10, 24 July 2010 (hist) (diff) N Profit and loss 36 - 10th grade ‎ (Created page with ''''Mr. Will Made a loss of 15% calculated on the selling price; <br>what will be the loss percent on the cost price?''' '''Solution:''' Let the selling price = $100 So, loss = …') (top)
• 03:32, 23 July 2010 (hist) (diff) N Profit and loss 35 -10th grade ‎ (Created page with ''''If there is a profit of 20% calculated on selling price, what <br>is the percentage of profit calculated on cost price?''' '''Solution:''' Let the selling price = $100 So pr…') (top)
• 03:30, 23 July 2010 (hist) (diff) N Profit and loss 34 - 10th grade ‎ (Created page with ''''A businessman reduced the price of his products 25% below marked price during <br>a sale, which had originally been fixed at 25% profit on cost price after deducting<br> 10% d…') (top)
• 02:58, 23 July 2010 (hist) (diff) N Profit and loss 33 -10th grade ‎ (Created page with ''''A deceitful factory owner defrauds 8% in buying and makes a profit of 12 ½ % <br>from buyer at the time of selling his goods. Find the actual gain percent<br> of the factory …') (top)
• 02:23, 22 July 2010 (hist) (diff) N Profit and loss 32 -10th grade ‎ (Created page with ''''The 1st dealer, 2nd dealer and 3rd dealer each make 20% profit in cap-business. <br>The 3rd dealers buy their stocks from the 2nd dealers. The cost of a cap<br> at 3rd dealer…') (top)
• 02:21, 22 July 2010 (hist) (diff) N Profit and loss 31 - 10th grade ‎ (Created page with ''''Mr. Robinson altogether got $719.50 by selling a fridge at profit of 20% and a TV <br>at a profit of 15%. Had he sold the fridge at a profit of 25% and the TV at a profit<br> …') (top)
• 02:20, 21 July 2010 (hist) (diff) N Profit and loss 30 - 10th grade ‎ (Created page with ''''A pen-selling firm buys 100 pens at $26.25 each pen and paid $125 towards<br> their carrying cost. The firm fixed the marked price of each pen at $36<br> and sold 75 pens at t…') (top)
• 01:54, 21 July 2010 (hist) (diff) N Profit and loss 29 - 10th grade ‎ (Created page with ''''A big dealer sold his products to a small dealer at a profit of 20%. The small dealer <br>gained 25% by selling the products at $3375. At what price the small dealer<br> bough…') (top)
• 03:45, 7 July 2010 (hist) (diff) N Profit and loss 28 - 10th grade ‎ (Created page with ''''A businessman makes his product with a price from which he can deduct 10%<br> for ready money and the cost price of his product is equal to 60% of the <br>selling price. What …') (top)
• 03:18, 7 July 2010 (hist) (diff) N Profit and loss 27 - 10th grade ‎ (Created page with ''''The manufacturing cost of each clock is $ 28. The manufacturers sell to the retailers<br> at 22% profit per clock. If a retailer sells a clock at $ 42.70, how much profit <br>…') (top)
• 03:25, 6 July 2010 (hist) (diff) N Profit and loss 26 - 10th grade ‎ (Created page with ''''A whole sale dealer sold his goods to a retail dealer at a profit 20%.<br> The retail dealer gained 25% by selling the goods at $ 3375. <br>At what price the retail dealer pur…') (top)
• 02:51, 6 July 2010 (hist) (diff) Profit and loss 23 - 10th grade ‎ (top)
• 02:49, 6 July 2010 (hist) (diff) Profit and loss 25 - 10th grade ‎ (top)
• 02:41, 6 July 2010 (hist) (diff) N Profit and loss 25 - 10th grade ‎ (Created page with ''''A man bought a certain number of plums at 15 per dollar and an equal<br> number at 12 per dollar. After mixing he sells it at 13 per dollar. <br>What percent does he gain or l…')
• 02:24, 6 July 2010 (hist) (diff) N Profit and loss 24 - 10th grade ‎ (Created page with ''''By selling lozenges at 12 per dollar there is a loss of 45; <br>at what rate should it be sold so as to gain 44%?''' '''Solution:''' Here a loss of 45 is incurred, that is (1…') (top)
• 02:12, 6 July 2010 (hist) (diff) N Profit and loss 23 - 10th grade ‎ (Created page with ''''By selling 40 meters of cloth, the cost price of 6 meters of cloth is lost. <br>What is the loss percent?''' '''Solution:''' Let the cost price of cloth be Rs. x per meter …')
• 05:21, 3 July 2010 (hist) (diff) N Algebra-find product-2 ‎ (Created page with ''''Find the product.''' '''1. {1/3 x + 4} {-1/2 x - 11}''' '''Solution :''' {x/3 + 4} {-x/2 - 11} = - x² / 6 – 11x / 3 – 2x – 44 = -x² / 6 – 1…') (top)
• 03:37, 3 July 2010 (hist) (diff) Algebra-find product-1 ‎ (top)
• 03:25, 3 July 2010 (hist) (diff) N Algebra-find product-1 ‎ (Created page with '''' Find the product.''' '''1) -3x⁵ (10x⁵ – 9x³ -12)''' '''Solution:''' -3x⁵ (10x⁵ – 9x³ -12) = -30x<sup>…')
• 05:33, 2 July 2010 (hist) (diff) Stat-Hypothesis Testing-10 ‎ (top)
• 05:32, 2 July 2010 (hist) (diff) N File:S-h-t-10.jpg ‎ (top)
• 05:31, 2 July 2010 (hist) (diff) N Stat-Hypothesis Testing-10 ‎ (Created page with ''''A group of 5 people are treated with drug A weigh 42, 39, 48, 60, 41 kg.;<br> a second group of 7 people from the same community treated with drug B weigh <br>38, 42, 56, 64, …')
• 04:13, 2 July 2010 (hist) (diff) Stat-Hypothesis Testing-9 ‎ (top)
• 04:07, 2 July 2010 (hist) (diff) N File:S-h-t-9b.jpg ‎ (top)
• 04:07, 2 July 2010 (hist) (diff) N File:S-h-t-9a.jpg ‎ (top)
• 04:04, 2 July 2010 (hist) (diff) N Stat-Hypothesis Testing-9 ‎ (Created page with ''''Two types of cells are tested for their length of life and the following data are obtained:''' File:s-h-t-9a.jpg Is there a significant difference in the two means? Valu…')
• 03:31, 2 July 2010 (hist) (diff) N Stat-Hypothesis Testing-8 ‎ (Created page with ''''A soap manufacturing company was distributing a particular brand of soap through<br> a large number of retail shops. Before a heavy advertisement campaign, the mean <br>sale p…') (top)
• 04:49, 1 July 2010 (hist) (diff) N Stat-Hypothesis Testing-7 ‎ (Created page with ''''A random sample of size 20 from a normal population gives a sample mean<br> of 42 and sample standard deviation of 6. Test the hypothesis that the <br>population mean is 44.St…') (top)
• 05:22, 30 June 2010 (hist) (diff) N File:S-h-t-6.jpg ‎ (top)
• 05:21, 30 June 2010 (hist) (diff) N Stat-Hypothesis Testing-6 ‎ (Created page with ''''Two independent random samples were taken from two normal populations and the following in formations is given:''' File:s-h-t-6.jpg '''Is it likely that the mean of popu…') (top)
• 05:03, 30 June 2010 (hist) (diff) N Stat-Hypothesis Testing-5 ‎ (Created page with ''''A random sample of size 10 was taken from a normal population, whose variance is<br> known to be 7.056 sq. inches. If the observations are (in inches) 65, 71, 64, 71,<br> 70, …') (top)
• 04:11, 28 June 2010 (hist) (diff) N Stat-Hypothesis Testing-4 ‎ (Created page with ''''The mean yield of wheat from a district A was 210 lbs with s.d. = 10 lbs. per acre <br>from a sample of 100 plots. In another district B, the mea yield was 220 lbs.<br> with s…') (top)
• 03:07, 28 June 2010 (hist) (diff) N Stat-Hypothesis Testing-3 ‎ (Created page with ''''A sample of 400 male students is found to have a mean height of 171.38 cms.<br> Can it be reasonably regarded as a sample from a large population with<br> mean height 171.17 c…') (top)
• 05:16, 26 June 2010 (hist) (diff) Stat-Hypothesis Testing-2 ‎ (top)
• 05:15, 26 June 2010 (hist) (diff) N Stat-Hypothesis Testing-2 ‎ (Created page with ''''In a large city A, 20% of a random sample of 900 school children had <br>defective eye-sight. In another large city B, 15% of a random sample<br> of 1600 children had the same…')
• 03:59, 26 June 2010 (hist) (diff) N Stat-Hypothesis Testing-1 ‎ (Created page with ''''In a big city 325 men out of 600 were found to be smokers.<br> Does this information support the conclusion that the majority<br> of men in this city are smokers? State the hy…') (top)
• 03:24, 26 June 2010 (hist) (diff) N Stat-Interval estimation-2 ‎ (Created page with ''''A random sample of 100 ball bearings selected from a shipment of 2000 <br>ball bearings has an average diameter of 0.354 inch with<br> a S.D. = 0.048 inch. Find the 95% confid…') (top)
• 02:20, 26 June 2010 (hist) (diff) N Stat-Interval estimation-1 ‎ (Created page with ''''A sample of 600 screws is taken from a large consignment and 75 are found <br>to be defective. Estimate the percentage of defectives in the consignment<br> and assign limits w…') (top)
• 17:15, 24 June 2010 (hist) (diff) N File:St12.jpg ‎ (top)

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