48 Persons can complete a part of work i

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Time and Work

Question:

48 Persons can complete a part of work in 35 hours. In how may hours will 20 persons do it ?

Options:

48 hours

56 hours

74 hours

84 hours

Correct Answer:

84 hours

Explanation:

Total work = No. of person × Time = 48 × 35

and

Let 20 person can do the same work in T hours.

Therefore,

Total work = No. of person × Time

48 × 35 = 20 × T

T = $\frac{48 × 35}{20}$ = 12 × 7 = 84 hrs.