1.

Worker A completes a task in 8 days and worker B completes the same task in 10 days. If both A and B work together, in how many days they will complete the task?

Answer»

Answer:

both will complete the WHOLE TASK in 40/9

Step-by-step explanation:

WORKER A completes the task in 8 days. So in one day he will complete 1/8 part of the task.

So, A's one day work =1/8

Similarly, B's one day work =1/10

∴ (A+B)'s one day work =1/9 + 1/10 = 9/40

9/40 of the task is completed in one day so both will complete the whole task in 40/9



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