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In what proportion must water be added to hydrochloric acid to gain 25% by selling it at the cost price?
The letters of the word MUMMY are arranged in a row randomly. The chance that the letters at the two extremes is M is
The sum of the digits of a two digit number is 12. The difference between the first digit and the second digit of the two number is 4. What is the product of the two digits of the number?
What should come in the place of question mark (?) in this question?
99.8/9.98 = 499/?
What should come in place of question mark (?) in the following question?
9800 ÷ {(769 ÷ 13 + 19) of 23/9} = ?
What approximate value should come in place of question mark (?) in the following question? (You are not expected to calculate the exact value)
87.60 + 99.81 + ? = 74.91% of 300
What approximate value should come in the place of the question mark (?) in the following question? (You are not expected to calculate the exact value)
69.709 - 32.94 × 1.98 = 149.86 ÷ ?
A merchant lent out Rs. 1,270 in two parts, one at 12% and the other at 7% interest. The yearly average come out to be 8%, Find the amount lent in two parts.
The price of raw materials has gone up by 15%, labour cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be a reduction in the usage of raw materials so as to keep the cost same?
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