Question
If one child has half the work efficiency of an adult,
determine the duration required for 8 children to construct a wall, which is 60% as large as the one built by 12 adults in 15 days.Solution
Let the efficiency of each man be '2x' units/day So, total work = 2x X 12 X 15 = '360x' units And efficiency of a child = 2x ÷ 2 = 'x' units/day So, required time = (360x X 0.6) ÷ (8 X x) = 27 days Hence, option a.
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.)...
124.80 + 50.01 + √170 = ? ÷ 5
(14.14 × 29.98) + 20.15% of 549.99 = ? + 120.34
47.78% of 499.98 + (19.89 × 7.76) = √? × 49.84
What approximate value should come in the place of (?) in the following questions?
...
1749.8 * √255.77 - ?³ = 19.8 * 1300 + 1488.08What approximate value should come in the place of (?) in the following questions?
908.90 –190.32 + √? = 23.03 * 5.2 + 24.72
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.)...
74.91% of 639.95 – 599.98% of 45 + 119.987 = ?
Relevant for Exams:
