RRB Paramedical Staff Nurse Model Paper 5

Question : 53 of 100

Marks: +1, -0

If the cost price of 12 pen is same as the selling price of 15 pen. What is the percentage of gain or loss?

Solution:

CP of 12 pen= SP of 15 pen

{\CP} × 12= {\SP} × 15

⇒{C P}/{S P}={5}/{4}

....(1)
From equation ( 1 ) we can see that

C P>S P

, therefore there will be loss.
Let the

C P=5

and

S P=4

Then Loss

=1

Loss

%={\text "Loss"\;}/{C P}×100

={1}/{5}×100

=20%

loss

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