Working at their respective constant rates, machines A and B can produce 900 bolts : Crackverbal Support

Working at their respective constant rates, machines A and B can produce 900 bolts Print

Modified on: Tue, 12 Oct, 2021 at 12:14 PM

Concept: The question tests on the area of Rates (Time and Work)

Solution:

In 30 hours, the total bolts produced by A and B = 900 + 1500 = 2400

Using the unitary method

2400 bolts -- 30 hours

1600 bolts ---x hours

Therefore 2400/1600 = 30/x

x=30∗1600/2400

=20 hours

Option E

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Working at their respective constant rates, machines A and B can produce 900 bolts Print

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