## Exercise 10B 1. A calculator is sold for 345 at a profit of 15%. Find the cost price of the calculator. At what price must it be s

Question

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## Answers ( )

Step-by-step explanation:15% profit means if C.P is Rs 100, profit is Rs 15

therefore SP = 100 + 15 = Rs 115

now when SP is Rs 345

CP = 100 / 115× 345= Rs 300

therefore CP = Rs 300

now profit = profit percent /cp×100

= 25/300×100

= Rs 8.3

SP = Cp + profit

= 300+8.3

SP =RS 308.3

therefore cp = rs 300

sp = rs 308.3

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