SSC CGL 2022141)Two persons A and B working separately can sanitise a building in 6 and 10 hours, respectively. They work in stretches of one hour alternately. If A begins at 8 a.m., then when will the work be finished?

Correct Option: B

\(7 \frac{1}{3} h\)

SSC CGL 2022142)A, B and C can all together do a piece of work in 10 days, in which B takes 3 times as long as A and C together to do the work. In how many days can B alone do the work?

Correct Option: B

40 days

SSC CGL 2022143)A is 20% more efficient than B. How much time will they working together take to complete a job which A alone could have done in 29 days?

Correct Option: D

\(\frac{174}{11}\)

SSC CGL 2022144)If Anju is 30% more efficient than Bitt, then how much time will they take, working together, to complete a job which Anju alone could have done in 23 days?

Correct Option: C

13 days

SSC CGL 2022145)A machine takes 10 h to cut 240 tools. How many tools will it cut in 25 h?

Correct Option: C

600

SSC CGL 2022146)Raju, Shobh and Mohan can do a work in 15 days, 20 days and 25 days respectively. In how many days,will the work be finished, if they do it on alternate days, Starting from Raju?

Correct Option: D

\(18\frac{9}{{10}}\) days

SSC CGL 2022147)A is 40% more efficient than B. How much time will both, working together, take to finish the work, which B alone can finish in 36 days?

Correct Option: A

15 days

SSC CGL 2022148)Aarif, Arun and Abraham can do a work in 12, 20 and 24 days, respectively. They all begin together. Aarif leaves the work 1 day, Arun 3 days and Abraham 4 days before its completion. In how many days is the work finished?

Correct Option: C

8

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