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 - To finish a work, a sets aside half additional time than B. In the event that together they take 18 days to finish the work, what amount of time might B take to isn't that right?

A - 30 days

B - 35 days

C - 40 days

D - 45 days

Answer : A

Explanation

Suppose B takes x days. Then ,
 A takes 150x/100 days , i.e. 3x/2 days
∴1/x+ 2/3x=   1/18 ⇒5/3x= 1/18   ⇒3x = 90 ⇒x= 30
Hence B takes 30 days.

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 20 days which B can do in 12 days. B worked at it for 9 days. A can complete the remaining work in:

A - 3 days

B - 5 days

C - 7 days

D - 11 days

Answer : B

Explanation

B's 9 days work = (1/12*9)= 3/4 ; remaining work = (1-3/4 )= 1/4 1/20 work is finished by A in 1 day. 1/4 works is finished by A in (20*1/4) days. =5 days

Q 4 - A can do a bit of work in 14 days which B can alone do in 21 days. They start together however 3 days before the fruition of the work, A leaves off. The aggregate no. of days for the work to be finished is

A - 33/5 days

B - 17/2 days

C - 51/5 days

D - 27/2 days

Answer : C

Explanation

B's 3 days work = (3*1/21)= 1/7 ; Remaining work = (1-1/7) = 6/7
   (A+B)'s 1 day?s work = (1/14+ 1/21) = 5/42
5/42 work is finished by (A+B) in 1 day.
6/7 work is finished by (A+B) in (42/5 * 6/7) days = 36/5 days
 Total no. of days = (3+36/5) = 51/5 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 - A men, a ladies and a kid can together finish a bit of work in 3 days. In the event that a men alone can do it in 6 days and a kid alone in 18 days, to what extent will a ladies take to finish the work?

A - 9 days

B - 21 days

C - 24 days

D - 27 days

Answer : A

Explanation

(1 man+ 1 women +1 boy ) 1 day work = 1/3
Suppose the women alone can do it in x days. Then
1/6 +1/x+1/18= 1/3 ⇒4/18 +1/x = 1/3 ⇒1/x = (1/3- 2/9) = 1/9
So, 1 woman can do the work in 9 days

Q 7 - If 5 men or 9 ladies can complete a bit of work in 19 days, 3 men and 6 ladies will do likewise work in

A - 10 days

B - 12 days

C - 13 days

D - 15 days

Answer : D

Explanation

5 men 1 day work = 1/19 ⇒ 1 man's 1 day work = 1/95
9 women 1 day work = 1/19 ⇒1 women 1 day work = 1/171
(3 men + 6 women) 1 day work = (3/95 + 6/171) = (27+30)/855 = 57/ 855 = 1/15
∴ 3 men and 6 women can finish the work in 15 days.

Q 8 - A and B attempted to do a bit of work for rs .4500. An alone could do it in 8 days and B alone in 12 days. With the help of C, they completed the work in 4 days. C's offer of cash is:

A - 375

B - 750

C - 1500

D - 2250

Answer : B

Explanation

A's 1 day work = 1/8 ,B's 1 day work = 1/12
(A+B+C) 's 1 days work = 1/4
  C 's 1 day work = 1/4 - (1/8+ 1/12) = (1/4 -5/24) = 1/24
A: B: C = 1/8: 1/12: 1/24 = 3:2:1
C's share = (4500* 1/6) = Rs. 750

Q 9 - A can do 1/4th some portion of the work in 10 days, B can do 40% of the work in 40 days and C can do 1/3 rd of the work in 13 days. Who will finish the work first?

A - A

B - B

C - C

D - A and C Both

Answer : C

Explanation

1/4th of the work is done by A in 10 days.
Whole work will be done by A in (10*4/1) = 40 days
40/100 of the work is done by B in 40 days.
Whole work will be done by B in (40*5/2) = 100 days
1/3 of the work is done by C in 13 days.
Whole work will be done by C in (13*3/1) = 39 days
Hence, C will complete the work first.

Q 10 - 12 men take 36 days to do a work while 12 ladies complete 3/fourth of the same work in 36 days. In how long 10 men and 8 ladies together will finish the same work?

A - 6 days

B - 12 days

C - 27 days

D - none of these

Answer : D

Explanation

Time taken by 1 man to finish the work = (36*12) day= 432 days.
3/4 th of work is completed by 12 women in 36 days.
Whole work is completed by 12 woman in (36*4/3) =48 days.
Time taken by 1 woman to finish the work = (48*12) days = 576 days.


aptitude_time_work.htm

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