Question

the average price of 5 pens is rupees 13 one new pen is added and the average price becomes rupees 12​

Answer 1

Answer:

10 AND 16

Step-by-step explanation:

Total pice of the two books = Rs. [(12 x 10) - (11.75 x 8)]

                                              = Rs. (120 - 94) = Rs. 26.

let the price of one book be Rs. x

Then, the price of other book = Rs. (x + 60% of x) = Rs.(x+(3/5)x) = Rs. (8/5)x

So,  x+(8/5)x =26 <=> x =10

The prices of the two books are Rs. 10 and Rs. 16