SSC CGL 11 Jun 2019 Shift 1 Paper

Question : 68 of 100

Marks: +1, -0

A is 40% more efficient than B and C is 20% less efficient than B. Working together, they can finish a task in 15 days. In how many days, will B alone complete 75% of the task ?

Validate

Solution:

A: B: C=7: 5: 4

Total work

=16 \×15

No. of days

=16 \×15 \×\ {75}/{100} \×\ {1}/{5}=36

days

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