Question
Working together, Amit and Pawan can finish a task in
22.5 days, and Pawan and Chirag can complete 60% of the same task in 14.4 days. Given that Amit is 12.5% more efficient than Chirag, determine the time Amit requires to complete 62.5% of the work.Solution
ATQ, Let, total amount of task = 360 units Time taken by ‘Pawan’ and ‘Chirag’ together to complete the task = 14.4/0.60 = 24 days Efficiency of ‘Amit’ and ‘Pawan’ together = 360/22.5 = 16 units per day Efficiency of ‘Pawan’ and ‘Chirag’ together = 360/24 = 15 units per day Let efficiency of ‘Chirag’ is ‘8x’ units per day So, efficiency of ‘Amit’ = 1.125 × 8x = 9x units per day So, 9x – 8x = 16 – 15 Or, x = 1 So, efficiency of ‘Amit’ = 9x = 9 units per day Desired time = (0.625 × 360)/9 = 25 days
20.02% of (95.96 × 104.01 – 56.02 × 64.04) – ? = 12.02 × 39.96 + 103.03
64.64% of 419.89 + 116.61 = ? x 12.89
(799.81/64) ÷ (10/799.92) × (129.84/130) = ?
...620.15 + 1279.98 + ? × (4.79)2 = 149.95% of 1600.14
78% of 1450 + 26² = ? + 1323 ÷ 17
? = 49.83% of 39.72% of (45.011.99 – 4.98 2.04)
149.78% of 319.87 – 199.83% of 45.45 = 130.03% of (? × 12.01)
- 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 exactvalue.)
18.22 × 7.99 + 156.15 = ?
