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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 - Ram and sham together can complete a vocation in 8 days. Ram can do likewise work all alone in 12 days. To what extent will sham take to carry out the occupation without anyone else's input?
Answer : C
Explanation
(Ram +sham)'s 1 day work = 1/8 , Ram 1 day work = 1/12 Sham 1 day work = (1/8-1/12) =1/24 ∴ Sham alone can finish the work in 24 days.
Q 2 - A and B can do a bit of work in 12 days. B and C can do it in 15 days and C and A can do it in 20 days. An alone can take every necessary step in:
Answer : C
Explanation
(A+B)'s 1 day work = 1/12 ; (B+C) 's 1 day work = 1/15 ; (C+A) 's 1 day work = 1/20 2(A+B+C) 's 1 day work = (1/12+ 1/15+ 1/20) = (5+4+3)/60 = 12/60 = 1/5 ∴ (A+B+C) 1 day work = 1/10 ⇒A 's 1 day work = (1/10- 1/15) = 1/30 ⇒A alone can do this work in 30 days.
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:
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 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 - The rates of working of A and B are in the proportion 3:4. The no. of days taken by them to complete the work is in the proportion
Answer : C
Explanation
Ratio of time taken = 1/3 : 1/4 = 4:3
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 - 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
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:
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 - A, B and C finished a bit of work costing Rs. 1800. A labored for 6 days, B for 4 days and C for 9 days. On the off chance that their day by day wages are in the proportion 5:6:4, how much sum will be gotten by A?
Answer : B
Explanation
Ratio of wages of A,B,C=(6*5):(4*6):(9*4)=30:24:36=5:4:6. A share=Rs (1800*5/15) =Rs 600.