12 men working 8 hours a day can completely build a wall of length 100 m, breadth 20 cm and height 5 m in 10 days. How many days will 16 men working 10 hours a day require to build a wall of length 200 m, breadth 60 cm and height 5 m ?
- A. 18
- B. 24
- C. 27
- D. 36 ✓
Correct Answer: D. 36
Explanation
Work W1 is proportional to 100 * 0.2 * 5 = 100. W2 is proportional to 200 * 0.6 * 5 = 600. Using M1*D1*H1/W1 = M2*D2*H2/W2, we get (12*10*8)/100 = (16*D2*10)/600. Solving for D2 yields 36 days.
Related questions on Arithmetic
- What is the remainder when (17^{25} + 19^{25}) is divided by 18?
- A bottle contains spirit and water in the ratio 1:4 and another identical bottle contains spirit and water in the ratio 4:1. In what rat...
- Let P = 5^5 \times 15^{15} \times 25^{25} \times 35^{35} and Q = 10^{10} \times 20^{20} \times 30^{30} \times 40^{40}. What is the numbe...
- Two students X and Y appeared in a test. The score of X is 20 more than that of Y. If the score of X is 75% of the sum of the scores of X an...
- Question: The product of a natural number N and the number M written by the same digits of N in the reverse order is 252. What is the number...