Question
7 men and 4 boys can complete a work in 6 days. A man
completes double the work than a boy. In how many days will 5 men and 4 boys complete the work?Solution
7 M + 4 B = 6 days and 1 man = 2 boys 7 M + 2 M = 6 days ⇒ 9M = 6 days 1 M = 6 `xx` 9 = 54 days Now, 5 M + 2M = 7M 1 M = 54 days 7M = `54/7 = 7 5/7days`
14.99% of 7820 + 5535.25 ÷ 123.001 - ? = 84
? 2 + (39.99 × 10.99 + 7.01) - (39.99 × 2.99 2 + 21.99) = 21.99 × 23.01
19.22 × 11.99 + 142.15 = ?
- 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 approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value....
24.75% of 20.125% of 30.05% of 2196.06 = ?Â
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.)<...
(15.98% of 399.99) - 6.998 = √?
83.781 `xx` 728.910 `-:` (3.008)2 = ?