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Aptitude - Time & Work Online Quiz

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.

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?

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?

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 and B together can finish a work in 3 days. They begin together. In any case, following 2 days, B left the work. In the event that the work is finished following 2 more days, B alone could take every necessary step in

Answer : B

Explanation

(A+B)'s 2 day work = (1/3*2)= 2/3 A's 2 days work = (1- 2/3) = 1/3 B's 2 days work = (2/3- 1/3) = 1/3 B's 1 day work = 1/6 ∴ B alone can finish the work in 6 days.

Q 4 - A and B can complete a bit of work in 30 days. They began at it for 20 days and after that B left. The remaining work was finished by An alone in 20 more days. An alone can complete the work in

Answer : D

Explanation

Work done by (A+B) in 20 days = (1/30*20) = 2/3 ; remaining work = (1- 2/3 )= 1/3
1/3 work is done by B in 20 days.
Whole work is done by A in (20*3) = 60 days

Q 5 - A does half as much work as B in three ?fourth of the time. On the off chance that together they take 18 days to finish the work, the amount of time might B takes to do it?

Answer : A

Explanation

Let the whole work be done by B in x days.
In 3/4 th of time, work done by A = 1/2
1/2 works is done by A in 3/4 x days.
Whole work is done by A in (2* 3x/4) days = 3x/2 days
∴1/x + 2/3x = 1/18 ⇒18+ 12= x ⇒ x= 30

Q 6 - 9 youngsters can finish a bit of work in 360 days. 18 men can finish the same work of piece in 72 days and 12 ladies can finish it in 162 days. In how long can 4 men, 12 ladies and 10 kids together finish the bit of work?

Answer : B

Explanation

9 children 1 day work = 1/360 ⇒1 child 1 day work = 1/3240
18 man 1 day work = 1/72 ⇒1 man 1 day work = 1/1296
12 women 1 day work = 1/162 ⇒1 women 1 day work = 1/1944
(4men +12 women +10 children) 1 day work = (4/1296+ 12/1944+10/3240)
= (1/324+1/162+1/324) = 4/324 = 1/81
Hence they can finish the work in 81 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

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 - 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:

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?

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 - 10 ladies can finish a work in 7 days and 10 youngsters take 14 days to finish the work. How long will 5 ladies and 10 kids take to finish the work?

Answer : C

Explanation

10 woman 1 day work =1/7⇒1 woman 1 day work =1/70.
10 children 1 day work =1/14⇒1 child 1 day work=1/140.
(5 woman +10children) 1 days work= (5*1/70+10*1/140) = (1/14+1/14) =2/14=1/7.
∴5 woman and 10 children will finish the work in 7 days.

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