Question

The average price of 10 pens is Rs. 12 while the average price of 8 of these pens is Rs. 11.75. Of the remaining two pens, if the price of one pen is 60% more than the price of the other, what is the price of each of these two pens?

पर्याय

• Rs. 12, Rs. 14

• Rs.5, Rs. 7.50

• Rs. 8, Rs. 12

• Rs. 10, Rs. 16

Answer 1

Rs. 10, Rs. 16

Explanation:

Total Price of 10 pen = 12 × 10 = 120

Price of 8 pen = 11.75 × 8 – 94.00

Price of Remaining 2 Pen = 120 – 94 = 26

Let Price of 1st pen = x

Price of 2^nd pen `=160/100"x"`

`"x"+160/100"x"=26`

`260/100"x"=26`

x = 10,

`160/100xx10=16`

10 and 16