Work and Time - Quant/Math -
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Question 4 the day: October 16, 2002
The question for the day is from the topic of Work and Time.

A and B working together can finish a job in T days. If A works alone and completes the job, he will take T + 5 days. If B works alone and completes the same job, he will take T + 45 days. What is T?

(1)

25

(2)

60

(3)

15

(4)

None of these

Solution:

The time it will take when A and B work together is given by the formula = 15 days. Where 5 and 45 are the extra time that A and B take to complete the job if the work alone as against working together.