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General Aptitude
10.1 Problems on H.C.F and L.C.M - General Questions

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In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?

A. 160

B. 175

C. 180

D. 195

E. None of the above

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Correct choice: B

Explanation:

Suppose the man works overtime for x hours.

Now, working hours in 4 weeks = (5 x 8 x 4) = 160.

∴ 160 x 2.40 + x x 3.20 = 432

⇒ 3.20x = 432 - 384 = 48

⇒ x = 15.

Hence, total hours of work = (160 + 15) = 175.

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General Aptitude 10.1 Problems on H.C.F and L.C.M - General Questions

General Aptitude
10.1 Problems on H.C.F and L.C.M - General Questions