Question
Person A can finish a task alone in 22(3/5) days, while
Person B can complete the same task alone in 14(1/8) days. If A and B collaborate on the task, how many days will it take for them to finish it together?Solution
22(3/5) = 113/5 14(1/8) = 113/8 Let total work = 1 unit So, efficiency of 'A' = (5/113) units/day Efficiency of 'B' = (8/113) units/day So, combined efficiency of 'A' and 'B 5/113 + 8/113 = 13/113Â units/day So, time taken by 'A' and 'B' together to finish the work = (113/13) = 8(9/13)Â days
(22% of 1500 + 15% of 2200) = ? x 11
7292/3 = ?
28(4/5) + 52(1/2) × 8(2/7) - 11(1/5) = ? + 6(1/5)
72% of 486 – 64% of 261 = ?
Find the simplified value of the given expression:
(125 - 75 ÷ 3 of 5) ÷ 2 + 4 of 12 ÷ 3 - 16 of 5 ÷ 20
32% of 250 – 16% of 125 = 8% of ?
119 ÷ [22 - {90 ÷ (23 - 105 ÷ (7 × 3))}] = ?
- Simplify:
300% of (3341 – 471) = ? × (√4225/195)
(115 × 17 × 3)/(23 × 51) + ?3 = √169