Each of the questions consists of a question followed by three statements. You have to study the question followed by three statements and decide which of the statements is/are necessary to answer the questions.
Each of the questions consists of a question followed by three statements. You have to study the question followed by three statements and decide which of the statements is/are necessary to answer the questions.
How many workers are required for completing the construction work in 10 days ?
A. 20% of the work can be completed by 8 workers in 8 days.
B. 20 workers can complete the work in 16 days.
C. One-eighth of the work can be completed by 8 workers in 5 days.
1). A and C only
2). B and C only
3). A only
4). C only
2 answers
NOTE :- $\frac{M1 * D1}{W1}$ = $\frac{M2 * D2}{W2}$
where M-> no. of men
D-> no. of days
W-> no. of days
I : Let n workers are required to finish work in 10 days. Let work is 100 units. 20% of work is 20 units.
$\frac{8*8}{20}$ = $\frac{10*n}{100}$
=> n = 32.
Thus, I is sufficient.
II : Let work is 100 units.
$\frac{20*16}{100}$ = $\frac{10*n}{100}$
=> n = 32
Thus, II is sufficient.
III : Let work is 100 units. One eighth of work is 12.5 units.
$\frac{8*5}{12.5}$ = $\frac{10*n}{100}$
=> n = 32.
Thus, III is sufficient.
Ans - Any one of the three statements is sufficient.
NOTE :- $\frac{M1 * D1}{W1}$ = $\frac{M2 * D2}{W2}$
where M-> no. of men
D-> no. of days
W-> no. of days
I : Let n workers are required to finish work in 10 days. Let work is 100 units. 20% of work is 20 units.
$\frac{8*8}{20}$ = $\frac{10*n}{100}$
=> n = 32.
Thus, I is sufficient.
II : Let work is 100 units.
$\frac{20*16}{100}$ = $\frac{10*n}{100}$
=> n = 32
Thus, II is sufficient.
III : Let work is 100 units. One eighth of work is 12.5 units.
$\frac{8*5}{12.5}$ = $\frac{10*n}{100}$
=> n = 32.
Thus, III is sufficient.
Ans - Any one of the three statements is sufficient.