Question
A person gives 20% of his salary to his wife and 25% of
the remaining to his children. Now he is left with Rs. 27000. What is his total salary?Solution
Let the total salary be x x × (100 – 20)% × (100 – 25)% = 27,000 x × 80/100 × 75/100 = 27,000 x = (27000 ×100 ×100)/(80 × 75) = Rs.45,000
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.)...
If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression: 126 × 14 – ...
An initial investment grows to four times its original amount in 6 years under compound interest. How many years will it take for the investment to grow...
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.)...
Determine the simplified value of the given expression: 15 of 3 - 4 X (15 ÷ 5 X 4 + 2 of 5 - 1) + 7
If (442 – 424 + 242) ÷ 13 + √2304 = x, then {(x/2) + 16} = ?
Two cars start from a place with a speed of 30 km/hr at an interval of 10 minutes. What is the speed of a man coming from the opposite direction towards...
Three workers W1, W2 and W3 got work from the contractor. In 5 days, ‘W1’ completed 25% of work. ‘W2’ is 20% less efficient than ‘W1’ but ta...
'A' can complete a task in 24 days, while 'B' can finish the same task in 36 days. However, 'A' works at only 2/3 of his usual efficiency, and 'B' opera...
A sum of Rs. 840 is divided among X, Y and Z such that X gets Rs. 132 more than Y. Y gets Rs. 75 more than Z. Find the share of Z?
Relevant for Exams:
