A, B and C alone can do a work in 8 days , 12 days and 6 days respectively. Find how many days they take together to complete work ?
6 days
8 days
2 2/3 days
4 days
3 days
Option C LCM of 8 , 12 and 6 = 24 total work = 24 efficiency of A = 24/8 = 3 efficiency of B = 24/12 = 2 efficiency of C = 24/6 = 4 time taken = 24/9 = 2 2/3 days
P and Q alone can do a work in 30 days and 20 days respectively. P works for 15 days and left the work, remaining work done by B. Find how many days required to complete the remaining work ?
10 days
8 days
20 days
18 days
16 days
Option A LCM of 30 and 20 = 60 total work = 60 efficiency of P = 60/30 = 2 efficiency of Q = 60/20 = 3 P completed work in 15 days = 15 * 2 = 30 time taken by Q to complete remaining work = 60 – 30 /3 = 10 days
A can complete 40% of work in 8 hours and while B alone can do the same work in 24 hours. Find the time taken by A and B together to complete the 60% of the work ?
5 2/3 days
8 3/5 days
4 days
6 6/11 days
8 days
Option D A alone can do all work = 8/40 * 100 = 20 days LCM of 20 and 24 = 120 efficiency of A = 120/20 = 6 efficiency of B = 120/24 = 5 time taken by A and B together to complete 60% of the work = 120/11 * 60/100 = 6 6/11 days
A and B alone can do a piece of work in 12 hours and 15 hours respectively. If they do the work alternatively for 1 hours each starting with A, then find how many hours will the work be completed ?
5 hours
3 hours
8 1/5 hours
12 1/4 hours
13 1/4 hours
Option E LCM of 12 and 15 = 60 total work = 60 efficiency of A = 60/12 = 5 efficiency of B = 60/15 = 4 work completed in 2 hours = 5 + 4 = 9 works (2 * 6) hours = (9 * 6) work 12 hours = 54 works A works in another hours = 5 work remaining 1 work completed by B = 14 hours total time = 12 + 1 + 1/4 = 13 1/4 hours
A, B and C alone can do a piece of work in 3 days. If A alone can do in 6 days and C alone can do it in 18 days, how long will B alone take to complete the work ?
8 days
9 days
18 days
6 days
4 days
Option B LCM of 3, 6 and 18 = 18 total work = 18 efficiency of A, B and C = 18/3 = 6 efficiency of A = 18/6 = 3 efficiency of C = 18/18 = 1 efficiency of B = 6 – ( 3 + 1 ) = 2 B alone can do the work = 18/2 = 9 days
P and Q undertook to do a piece of work for rs.3500. P alone can do it in 12 days and Q alone in 20 days. If they finished the work with the help of R in 6 days. What is share of R ?
800
700
850
650
725
Option B LCM of 12, 20 and 6 = 60 efficiency of P = 60/12 = 5 efficiency of Q = 60/20 = 3 efficiency of P, Q and R = 60/6 = 10 efficiency of R = 10 – ( 5 + 3 ) = 2 share of R = 3500 * 2 / 10 = 700
Rita and Gita can do a piece of work individually in 40 days and 60 days respectively. If they work on alternate days starting with Gita, then in how many days will the work get finished ?
28 days
24 days
17 days
48 days
46 days
Option D LCM of 40 and 60 = 120 efficiency of Rita = 120/40 = 3 efficiency of Gita = 120/60 = 2 starting with Gita work completed in 2 days = 5 time required to complete total work = 24 * 2 = 48 days
A and B can do a work in 12 days. B and C can do the same work in 20 days. A and C can also do the same work in 30 days. If they all work together in how many days will they complete the work ?
10 days
14 days
12 days
13 days
15 days
Option C LCM of 12, 20 and 30 = 120 efficiency of A and B = 120/12 = 10 efficiency of B and C = 120/20 = 6 efficiency of A and C = 120/30 = 4 A + B + B + C + A + C = 10 + 6 + 4 = 20 2(A + B + C) = 20 A + B + C = 10 time 120/10 = 12 days
8 men or 12 women can finish a work in 25 days. How many days will 6 men ad 11 women can finish the same work ?
15 days
14 days
28 days
30 days
32 days
Option A 8 men = 12 women men/women = 12/8 = 3/2 total work = 8 * 3 * 25 = 600 time required = 600 /(6 * 3 + 11 * 2) = 600/40 = 15 days
A, B and C can complete a job in 9 days, 10 days and 15 days respectively. A, B and C start the work together and after 2 days B and C leave the work. Find how many days taken by A to complete the remaining work ?
6 days
18 days
14 days
4 days
8 days
Option D LCM of 9, 10 and 15 = 90 efficiency of A = 90/9 = 10 efficiency of B = 90/10 = 9 efficiency of C = 90/15 = 6 A, B and C complete work in 2 days = 2(10 + 9 + 6) = 50 remaining work = 90 – 50 = 40 time taken by A to complete remaining work = 40/10 = 4 days
Fantastic blog! Do you have any tips for aspiring writers?
I’m planning to start my own site soon but I’m a little lost on everything.
Would you advise starting with a free platform like
Wordpress or go for a paid option? There are so many options out
there that I’m completely confused .. Any recommendations?
Cheers!
228784 901575You can surely see your enthusiasm in the work you write. The world hopes for more passionate writers like you who arent afraid to say how they believe. Always go following your heart. 260992
I was curious if you ever considered changing the structure of your
website? Its very well written; I love what youve got to
say. But maybe you could a little more in the way of content so people could connect with it better.
Youve got an awful lot of text for only having one or
2 images. Maybe you could space it out better?
Fantastic blog! Do you have any tips for aspiring writers?
I’m planning to start my own site soon but I’m a little lost on everything.
Would you advise starting with a free platform like
Wordpress or go for a paid option? There are so many options out
there that I’m completely confused .. Any recommendations?
Cheers!
228784 901575You can surely see your enthusiasm in the work you write. The world hopes for more passionate writers like you who arent afraid to say how they believe. Always go following your heart. 260992
I was curious if you ever considered changing the structure of your
website? Its very well written; I love what youve got to
say. But maybe you could a little more in the way of content so people could connect with it better.
Youve got an awful lot of text for only having one or
2 images. Maybe you could space it out better?