Question

If on selling 12 notebooks, a seller makes a profit equal to the selling price of 4 notebooks, what is his percent profit?

• A. 33.33
• B. 25
• C. 50
• D. 45

Answer 1

The correct option is C

50

(S.P. of 12 notebooks) - (C.P. of 12 notebooks) = (S.P. of 4 notebooks)

C.P. of 12 notebooks = S.P. of 8 notebooks.

Let C.P. of each notebook be Re. 1.

Then, C.P. of 8 notebooks = Rs. 8; S.P. of 8 notebooks = Rs. 12

C.P of 12 notebooks = Rs.12 and S.P of 12 notebooks = Rs.18

$\therefore$ Gain %= $\left(\frac{6}{12}\times 100\right)\%=50\%.$