 # RD Sharma Solutions Class 8 Mathematics Solutions for Profit Loss Discount and Value Added Tax Exercise 13.1 in Chapter 13 - Profit Loss Discount and Value Added Tax

Question 1 Profit Loss Discount and Value Added Tax Exercise 13.1

A student buys a pen for Rs 90 and sells it for Rs 100. Find his gain and gainpercent.

We know that the cost price of pen = Rs 90

Selling price of pen = Rs 100

By using the formula,

Gain = selling price – cost price

= 100 – 90

= Rs 10

By using the formula,

Gain % = (gain/cost price) × 100

= (10/90) × 100

= 100/9

= 11 1/9 %

Video transcript
"hello students i am rita your master tutor and the today's question is a student buys a pen for rupees 90 and sales 8 for rupees 100 find his gain and gain percent so in this question cp is rupees 90 and sp is equal to rupees 100 so sp is greater than cp so clearly it is a case of gain so gain is equal to rupees 100 minus 90 then we got rupees 10. now we have to find the gain percent the formula of gain percent is gain divided by cp into 100 now we put the values here 10 divided by cp is 90 into 100 so cancel out 1 0 so we got 100 by 9 so this is our answer i hope you like this video so please subscribe leto for more updates and do comment your questions thank you"
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