Question
‘A’ and ‘B’ can do a piece of work in 20 days
and 32 days, respectively. If they started the work together and worked on it for 9 days, then find the time taken by ‘B’ alone to complete the remaining work.Solution
Let total amount of work be 160 units Efficiency of ‘A’ = 160/20 = 8 units/day Efficiency of ‘B’ = 160/32 = 5 units/day Amount of work done by ‘A’ and ‘B’ together in 9 days = (8 + 5) × 9 = 117 units Time taken by B to complete remaining work = (160 – 117)/5 = 8.6 days
Amit and Bheem can individually finish a task in 10 days and 15 days, respectively. If they work together to complete the task an...
210.34 + 16.92² + ?³ = √900.56 * 31.23
30.01 × √1023 + 196 = ? 2 – 287
(98.03 + 186.98) ÷ 19.211 = 89.9 – 20.23% of ?
6.992 + (2.01 × 2.98) + ? = 175.03
(9/20 of 3998.93) - √2499.57 + (17.87% of 1199.67) = ?
25.05% of 220.05 – 10.15% of 119.99 × 2.02 = ?
739.85 + 5003 ÷ 24.99 × 69.999 = ?
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.)...
