Aptitude - Time & Work Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to Simple Interest. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - A does 20% less work than B. In the event that A can finish a bit of work in 15/2 hours, then B can do it in

A - 5 hours

B - 11/2 hours

C - 6 hours

D - 13/2 hours

Answer : C

Explanation

Suppose in a given time B completes the whole work.
Then, in that time A does 80/100 work i.e. 4/5 work
Ratio of work done by A and B = inverse ratio of time taken by A and B.
Suppose B do the work in x hrs .Then, 4/5:1=2/15:1/x⇒4:5=2x: 15
⇒ (5*2x) = (4*15) ⇒10x =60⇒x=6.
Time taken by B to finish the work=6hrs.

Q 2 - 3 men or 5 ladies can do a work in 12 days. To what extent will 6 men and 5 ladies take to complete the work?

A - 4 days

B - 10 days

C - 15 days

D - 20 days

Answer : A

Explanation

3 men =5 women ⇒(6 men +5 women )=15 women
Now, 5 women can do it in 12 days.
1 woman can do it in (12*5) days.
15 women can do it in 12*5/15days=4days.

Q 3 - A can do a bit of work in 24 days while B alone can do it in 16 days. With the help of C, they can complete the work in 8 days. C alone can take every necessary step in

A - 32 days

B - 36 days

C - 40 days

D - 48 days

Answer : D

Explanation

(A+B)'s 1 day work = (1/24+1/16)=  5/48
(A+B+C) 's 1 day work = 1/8
C's 1 day work = (1/8- 5/48) = 1/48
∴C alone can finish the work in 48 days.

Q 4 - A and B can do a bit of work in 45 days and 40 days . they started the work together however A leaves after a few days and B completed the remaining work in 23 days . After how long did A leaves?

A - 6 days

B - 8 days

C - 9 days

D - 12 days

Answer : C

Explanation

Work done by B in 23 days = (23*1/40) = 23/40 ; remaining work = (1- 23/40)= 17/40
(A+B)'s 1 day work = ( 1/45+ 1/40) = (8+9)/360 = 17/360
17/360 work is done by (A+B) in 1 day.
17/40 work is done by them in (360/17*17/40) = 9 days

Q 5 - A man and a kid finish a work together in 24 days. On the off chance that throughout the previous 6 days man alone takes every necessary step then it is finished in 26 days. To what extent the kid will take to complete the work done?

A - 72 days

B - 20 days

C - 24 days

D - 36 days

Answer : D

Explanation

Work done by  (man + boy ) in 20 days = (1/24*20)= 5/6
              Remaining work = (1-5/6) = 1/6
1/6 work is done by boy in 6 days.
Whole work will be done by the boy in (6*6) = 36 days

Q 6 - 8 men can do a bit of work in 12 days. 4 ladies can do it in 48 days and 10 kids can do it in 24 days. In how long can 10 men, 4 ladies and 10 kids together finish the bit of work?

A - 5 days

B - 15 days

C - 28 days

D - 6 days

Answer : D

Explanation

8 men 1 day work = 1/12  ⇒1 man 1 day work = 1/96
4 women 1 day work = 1/48 ⇒1 women 1 day work = 1/192
10 children 1 day work = 1/24 ⇒1 child 1 day work = 1/240
(10 men + 4 women +10 children)'s 1 day work = (10/96 + 4/192 +10/240)
= (5/48+ 1/48+ 1/24) = (5+1+2)/48 = 8/48 = 1/6
So, they can finish the work in 6 days.

Q 7 - 4 men and 6 ladies complete an occupation in 8 days while 3 men and 7 ladies complete it in 10 days. 10 ladies cooperating will complete it in

A - 24 days

B - 32 days

C - 36 days

D - 40 days

Answer : D

Explanation

Let 1 men 1 day work be x and 1 women 1 day work be y. then
4x+6 y= 1/8 ... (1)    3x+7y = 1/10 ...(11)
Multiplying (1) by 3, (11) by 4 and subtracting, we get
10 y = (4/10- 3/8) = (16-15)/40 = 1/40 ⇒y = 1/400
1 women's 1 day work = 1/400
10 women 1 day work = (1/400*10) = 1/40
Hence 10 women can finish the work in 40 days

Q 8 - 2 men and 3 ladies can complete a bit of work in 10 days, while 4 men can do it in 10 days. In how long will 3 men and 3 ladies complete it?

A - 6 days

B - 17/3 days

C - 8 days

D - 25/3 day

Answer : C

Explanation

Let 1 men 1 day work be x and 1 women 1 day work be y. then
2x+3y = 1/10 ...  (1) 4x= 1/10 ⇒ x= 1/40
Putting x= 1/40 in (1), we get
2*1/40 + 3y = 1/10   ⇒3 y = (1/10- 1/20) = 1/20 ⇒y = 1/60
(3 men + 3 women)'s 1 day work = (3* 1/40 + 3*1/60) = (3/40 +1/20) = 1/8
SO, they will finish the work in 8 days.

Q 9 - An alone can complete a work in 10 days which B alone can complete in 15 days. On the off chance that they cooperate and complete it, then out of an aggregate wages of rs. 3000. A will get:

A - 1200

B - 1500

C - 1800

D - 2000

Answer : C

Explanation

A's 1 day  work = 1/10 ,  B's 1 day work = 1/15
Ratio of wages of A and B = 1/10: 1/15 = 3:2
A's share = (3000*3/5) = 1800 rs.

Q 10 - A works twice as quick as B. On the off chance that the two can together complete a bit of work in 12 days, then B alone can do it in

A - 24 days

B - 27 days

C - 36 days

D - 48 days

Answer : C

Explanation

Let B 1 day work =x. Then , A 1 days work=2x
X+2x=1/12⇒3x=1/12⇒x=1/36.
B 1 day work=1/36.
Hence B alone can finish the work in 36 days.


aptitude_time_work.htm

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