1)

Sanket purchased 20 dozen notebooks at-Rs. 48 per dozen, if he sold 8 dozen at profit 10% and the remaining 12 dozen with 20% profit. What is his profit percentage in the transaction ?


A) 7.68

B) 15

C) 16

D) 19.2

E) 19

Answer:

Option C

Explanation:

C.P of 20 dozen = Rs. $(48\times20)$ = Rs. $960$.

C.P of 8 dozen = Rs. $(48\times8)$ = Rs. $384$.

C.P of 12 dozen = Rs. $(960-384)$ = Rs. $576$.

Total S.P = Rs. $\left(\frac{110}{100}\times384+\frac{120}{100}\times576\right)$ = Rs. $1113.60$.

$\therefore$ Profit % $=\left(\frac{153.60}{960}\times100\right)$% $=16$%