If the marked price of a article is 40% more than the cost price and a discount of 20% is gives on it, then the percentage profit is-
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Solution
Let the cost price is Rs. 100
∴ Selling price = = Rs. 112
So % profit = 112 – 100 = 12%
What is the difference between the compound interest and simple interest on a sum of Rs. 2200 for a period of 2 years if the rate of interest is 30% ?
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Solution
Difference = 2200 × = Rs. 198
A reduction of 25% in the price of apples enables a man to buy 15 kg more apples for Rs. 2520. What is the new price per kg of apples?
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Solution
New price = = Rs. 42 /kg
The base of a triangle is 15 cm and height is 12 cm. The height of another triangle of same the area having base 10 cm is:
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Solution
Let the height is h cm.
∴
h = 18 cm
The average weight of nine mangoes increases by 20 gm if one of them weighing 120 gm is replaced by another. The weight of the new mango is:
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Solution
Weight of new mango = 120 + 9 × 20 = 300 gm
If x = 30, then 5% less than x2 – 102 is:
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Solution
(302 – 102)×
When 3737 + 37 is divided by 38, the remainder is:
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Solution
= (–1)37 + 37 = 36