Question
12Men and 12women can complete a piece of work in 9
days. 6 men and 15 women can complete the same work in 12 days. How long (in days) would it take 9 women to complete half the work?Solution
12M + 12W ® 9 days  1M + 1W ® 108 days  also,  6M + 15W ® 12  2M + 5W ® 36 days  Þ 108 (1M + 1W) = 36(2M + 5W) 3M + 3W = 2M + 5W M = 2W  M: W=2:1 Total work = 36 (4 + 5) = 36 × 9 = 324 9 Women complete the half work =162/ 9 = 18 days
- 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.)
99.99% of 9.99 + 299.98% of 129.98 = ?2Â
456.9 + 328.10 - 122.98 = ? + 232.11
- 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.)...
The average marks of 15 candidates were reported as 84. However, it was later discovered that the marks of three candidates were ...
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.)...
15.15% of (150.50 + 249.50) + 8.08³ - (10.10 of 5.05) = ? of (75.75 - 25.25)
A motor boat goes downstream from point A to B ,which is 36 km away from point A, and then returns to A. If actual speed of the boat in still water is 7...
