Question
A and B can complete a task together in 12 days, while B
alone takes 24 days to finish it. A began working alone and left after ‘x’ days, after which B completed the remaining work in 18 days. Determine the percentage of the total work completed by A.Solution
Let total amount of work be 16 units
Efficiency of (A + B) = 16/8 = 2 units/day
Efficiency of ‘B’ = 16/16 = 1 unit/day
Amount of work done by ‘B’ = 12 × 1 = 12 units
Percentage of work done by ‘A’ = {(16 – 12)/16} × 100 = 25%
- 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.)
Find the approximate value of Question mark(?). No need to find the exact value.
(575.86 ÷ 24.03) × (35.96 ÷ 6.03) + √(255.76) = ?
...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.)...
456 x 99.999 + 654 = ?
?% of 309.99 = 40.01% of 249.99 + 295.98% of 49.99
56237.05 + 10616.99 - 137.25 + 1795.33 = ?
620.15 + 1279.98 + ? × (4.79)2 = 149.95% of 1600.14
`(13.022)^(2)+ (42.93)^(2)-(53.125)^(2)+(192.33xx14.88)=?- (88.44)^(2)- (42.03 xx 23.12)`
