Question
A man can do a work in 20 days and a woman can do the
same work in 30 days. In how many days will 2 men and 3 women do the work?Solution
LCM (20, 30) = 60 Let the total work be the LCM of the time taken by the individuals. Hence, the total work = 60 units Efficiencies, 1 man does each day = 60 / 20 = 3 units 1 woman do each day = 60/30 = 2 units Time taken by the mentioned workforce to finish the work = 60 /(2×3+3x2) = 5 days
619.97 ÷ 20.01 X 124.99 ÷ 24.91 = ?
- 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.)...
(17.17 ×  21.98) + 34.15% of 649.99 = ? + 125.34
7480 ÷ 16.98 – 34.32 ÷ (4.99/99.9) = ?
89.87 × 3.21 + 60.32 = ? × (6.89 2 – 19.21)Â
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
What approximate value will replace the question mark (?) in the following?
39.99...
13.99% of 299.99 ÷ 7.17 = ? ÷ 16.15
- 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.)
