Time and Work Practice Test 2 with solutions

Question : 30 of 40

Marks: +1, -0

A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much to be paid to C?

Rs. 800
Rs. 600
Rs. 400
Rs. 375

Validate

Solution:

C's 1 day's work =

1/3 - (1/6+1/8)

1/3 - 7/{24}

1/{24}

Hence, C's 3 days' work = 3 ×

1/{24}

1/8

Share of money of C =

1/8 ×

Rs. 3200 = Rs. 400

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