Question
A shopkeeper sells two articles for Rs.3000 each. On
one, he gains 25%, and on the other, he loses 20%. What is the overall percentage gain or loss?Solution
Let the cost price of the first article be x. Selling price = x + 25% of x = 1.25x So, 1.25x = 3000 x = 3000/1.25 = Rs.2400 Let the cost price of the second article be y. Selling price = y - 20% of y = 0.8y So, 0.8y = 3000 y = 3000/0.8 = Rs.3750 Total cost price = 2400 + 3750 = Rs.6150 Total selling price = 3000 + 3000 = Rs.6000 Loss = 6150 - 6000 = Rs.150 Percentage loss = (150/6150) × 100 = 2.44%
What approximate value should replace the question mark?
12.45% of 640.20 − 60% of 2500 = ? − 9000.10
`[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=` ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
What value should come in place of question mark (?) in the following question. (You need not to calcualte the exact value)
?/647 = 226/ ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
A, B & C have Rs.1550 together. If they divide the money in the ratio 1:3:1 respectively. Find the difference of amount received by B and C.
What approximate value should come in the place of (?) in the following questions?
∛(92.8 + √1025) * ? = 16.06% of 750
√1024.21 × √624.89 ÷ 4.98 + 11.99 × 4.01 = ?
√784 × 3 + (713.99 ÷ 6.98) = ?% of 619.99
11.11% of (123.45 + 234.56) + 10.01³ - (5.05 of 7.07) = ? of (88.88 - 33.33)
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