Question

Amit alone can complete a piece of work in 28(1/8) days

Q: Answer-Amit alone can complete a piece of work in 28(1/8) days while Amit and Bhanu together can complete t...

Time taken by Amit to complete the whole work 2258 days Let total amount of work 450 units LCM of 225 and 18 So, efficiency of Amit 4502258 16 units per day Efficiency of Amit Bhanu 45018 25 units per day Efficiency of Bhanu 25 16 9 units per day Amount of work done by Bhanu in 5 days 9 5 45 units Amount of work done by Amit and Bhanu together in 6 days 6 25 150 units Amount of work done by Bhanu and Chaman together in 15 days 450 45 150 255 units So, efficiency of Bhanu and Chaman together 25515 17 units per day Efficiency of Chaman 17 9 8 units per day For option a Amount of work done by Amit in 12 days 12 16 192 units Amount of work done by Bhanu in 16 days 16 9 144 days Amount of work done by Chaman in 1434 days 594 8 118 units Total work done by Amit, Bhanu and Chaman together 192 144 118 454 units 450 units So, option a cannot be the answer. For option b Efficiency of Chaman 2.5 8 20 units per day Time taken by Chaman to complete the whole work 45020 22.5 days So, option b cannot be the answer. For option c Desired time 0.64 45016 8 12 days

while Amit and Bhanu together can complete the same work in 9 days. Bhanu started the work and after 5 days Amit joined him. After 6 more days, Amit left and Chaman joined the work and the whole work was completed in 26 days. Which one of the following statements is true?

A If Amit alone worked for 12 days and Bhanu alone worked for 16 days then Chaman will complete the remaining work alone in 14.75 days.

B Chaman can complete the whole work in 23.5 days if he works 150% more efficiently.

C Amit and Chaman together can complete 64% of the work in 12 days.

D If Amit alone worked on it for 15 days, Bhanu alone worked on it for 5 days then Chaman could have completed the remaining work in 10 days.

E None of these

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