Question

A book seller sold a box of 10 pencils for Rs.80 and incurred a loss. Had he sold it for Rs.98, his gain would have been twice the loss he incurred earlier.The cost price of the box of pencil is?

Answer 1

Answer :

The Cost Price of box of pencil is (C.P = 80 + X = 80 + 6 ) Rs. 86.

Step by Step Explanation :

Given Equation :

Box of pencil sells at Rs. 80. So, its incurred loss.

C.P - X = 80 ......... (1)

If the Box of pencil sells at Rs. 98. So, its gain would have been twice the loss.

C.P + 2X = 98 ........... (2)

C.P = 80 + X (From Eq 1)

Put value of C.P in Eq 2.

C.P + 2X = 98

80 + X + 2X = 98

3X = 98 -80

X = 18/ 3

X = 6

So, the Cost Price of box of pencil is (C.P = 80 + X = 80 + 6 ) Rs. 86.