Question

A and B can complete a work in 15 days and 10 days respectively.They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. the whole work was completed in

Answer 1

Answer:

12 days

Step-by-step explanation:

Let total work = LCM (15,10) = 30

A complete 2 units perday

B complete 3 units perday

They work together for 2days completing :

= 2×(2+3)=10 unit

Remaining 20 unit will be completed A alone in

= 20/2 = 10 days

Total time taken = 2+10 =12 ( ans )

Hope it's helpful :)

Thank you :)

Keep smiling :)