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objective Ques (148 results)
141)

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?

SSC CGL 2022
A)

\(6 \frac{1}{3} h\)

B)

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

C)

\(9 \frac{1}{3} h\)

D)

\(8 \frac{1}{3} h\)

142)

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?

SSC CGL 2022
A)

10 days

B)

40 days

C)

50 days

D)

15 days

143)

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?

SSC CGL 2022
A)

\(\frac{203}{11}\)

B)

\(\frac{116}{11}\)

C)

\(\frac{145}{11}\)

D)

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

144)

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?

SSC CGL 2022
A)

15 days

B)

\(20{{3} \over 17}\) days

C)

13 days

D)

11 days

145)

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

SSC CGL 2022
A)

550

B)

480

C)

600

D)

360

146)

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?

SSC CGL 2022
A)

\(21\frac{7}{{10}}\) days

B)

\(18\frac{7}{{10}}\) days

C)

\(15\frac{9}{{10}}\) days

D)

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

147)

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?

SSC CGL 2022
A)

15 days

B)

\(9\frac{1}{3}\) days

C)

18 days

D)

\(11\frac{2}{3}\) days

148)

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?

SSC CGL 2022
A)

11

B)

10

C)

8

D)

9

showing 141 - 148 results of 148 results

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