Data Sufficiency Question 31

Directions : Each of the questions given below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements sufficient to answer the question. Read both the statements and

(IDBI Officer Grade Exam. 22.08.2014)

Give answer (1) if the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question. Give answer (2) if the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.

Give answer (3) if the data in statement I alone or in statement II alone are sufficient to answer the question.

Give answer (4) if the data in both the statements I and II are not sufficient to answer the question.

Give answer (5) if the data in both the statements I and II together are necessary to answer the question.

  1. How many women will complete a work in 12 days?

I. Part of work done by a woman in 1 day is $\frac{3}{4}$ th of that of a man in one day.

II. 27 men can do the same work in 4 days.

Show Answer

Correct Answer: 31. (5)

Solution: 31. (5) From both statements,

$\mathrm{M}{1} \mathrm{D}{1}=\mathrm{M}{2} \mathrm{D}{2}$

$\Rightarrow 27 \times 4=\mathrm{M}_{2} \times 12$

$\Rightarrow \mathrm{M}_{2}=\frac{27 \times 4}{12}=9 \mathrm{men}$

From statement I,

4 women $\equiv 3$ men

$\therefore 9$ men $\equiv 12$ women