RRB Paramedical Staff Nurse Model Paper 10

Question : 41 of 100

Marks: +1, -0

A can do a work in 10 days and B in 12 days. If they work on it together for 5 days, then the fraction of the work that is left is :

Solution:

A's 1 day's work

= 110

B's 1 day's work

= 112

(A + B)'s 1 day's work

= (110+112)=1160

(A + B)'s 5 day's work

= 1160×5=1112

Remainingwork

= 1−1112=112

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