1000+ IBPS Bank Aptitude Test Questions and Answers Pdf - 1
Question: 1
A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?
(A) 4
(B) 5
(C) 6
(D) 7
Ans: C
B’s 10 day’s work = $$({1}/{15} × 10)$$ = $${2}/{3}$$.
Remaining work $$(1 - {2}/{3})$$ = $${1}/{3}$$
Now, $${1}/{18}$$ work is done by A in 1 day.
∴ $${1}/{3}$$ work is done by A in $$(18 × {1}/{3})$$ = 6 days.
Question: 2
8 men can complete a piece of work in 20 days. 8 women can complete the same work in 32 days. In how many days will 5 men and 8 women together complete the same work?
(A) 12 days
(B) 14 days
(C) 16 days
(D) 18 days
Ans: C
8 × 20 men = 8 × 32 women
5 men = 8 women
Now, 5 men + 8 women = 8 + 8 = 16 women
D1 × M1 = M2 × D2
8 × 32 women = 16 × D2
D2 = $${32 × 8} / {16}$$ = 16 days.
Question: 3
B and C together can complete a work in 8 days. A and B together can complete the same work in 12 days, and A and C together can complete the same work in 16 days. In how many days can A, B and C together complete the same work?
(A) $$3{9}/{13}$$
(B) $$3{5}/{12}$$
(C) $$7{5}/{13}$$
(D) $$7{5}/{12}$$
Ans: C
B and C together can complete a work in = $${1}/{8}$$
A and B together can complete a work in = $${1}/{12}$$
A and C together can complete a work in = $${1}/{16}$$
Work completed by 2(A + B + C) in a day
= $${1/8} + {1/12} + {1/16}$$
= $${6 + 4 + 3} / {48 }$$= $${13}/{48}$$
Work completed by (A + B + C) in day = $${13} / {48 × 2}$$ = $${13}/{96}$$
So, A, B and C together can complete the work in $${96}/{13}$$ days = $$7{5}/{13}$$ days.
Question: 4
A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together what part of the same work can they finish in a day?
(A) $${1}/{2}$$
(B) $${1}/{6}$$
(C) $${1}/{9}$$
(D) $${2}/{7}$$
Ans: B
$${18 + 9} / {18 × 9}$$ = $${1}/{6}$$.
Question: 5
A man, a woman and a boy can together complete a piece of work in 3 days. If a man alone can do it in 6 days and a boy alone can do it in 18 days, how long will a woman alone take to complete the work?
(A) 7 days
(B) 9 days
(C) 18 days
(D) 27 days
Ans: B
Woman’s one day’s work = $${1/3} – {1/6} – {1/18}$$ = $${6 - 3 - 1} / {18}$$ = $${1}/{9}$$.
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