 # 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 3 Profit Loss Discount and Value Added Tax Exercise 13.1

A boy buys 9 apples for Rs 9.60 and sells them at 11 for Rs 12. Find his gain orloss percent.

We know that the cost price of 9 apples = Rs 9.60

Cost price of 1 apple = Rs 9.60/9

Selling price of 11 apple = Rs 12

Selling price of 1 apple = Rs 12/11

By using the formula,

Gain = selling price – cost price

= 12/11 – 9.60/9

= (108-105.60)/99

= Rs 2.40/99

By using the formula,

Gain % = (gain/cost price) × 100

= ((2.40/99)/(9.60/9)) × 100

= 25/11

= 2 3/11%

Video transcript
"hello students i am rita your math leader tutor and the today's question is a boy buys nine apples for rupees 9.60 and seals them at 11 for rupees 12. find his gain or loss person in this question it is given that cp of cp of 9 apples is equal to rupees 9.60 so we can find cp of 1 apple cp off one apple is equal to rupees 9.60 divided by 9 so when we divide 9.60 divided by 9 we got 1.06 and in the question it is given sp of 11 apples sp of 11 apples is equal to rupees 12 now the sp of one apple is equal to rupees 12 by 11 then it becomes 12 divided by 11 we got rupees 1.09 so it means sp is greater than cp so it is a case of k so gain is equal to sp minus c so 1.09 minus 1.06 1.09 minus 1.06 so we got 0.03 and we have to find the percent also and we know gain percent is equal to gain divided by cp into 100 so the gain is 0.03 divided by cp cp is 1.06 into 100 so 3 by 106 into 100 when we solve this we got 300 divided by 106. we got 2.8 percent 2.8 percent so this is our answer i hope you like this video so please subscribe to for more updates and to comment your questions thank you"
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