Question 6

If the selling price is doubled, then profit triples. What is the profit per cent?

Solution

let the selling price be SP

Cost price be CP

profit be P

As we know that

P=SP-CP

ATQ

3P= 2SP-CP

3 (SP-CP)=2SP-CP

SP=2CP

Profit% =$$\frac{(SP-CP)}{100}CP $$

=100%

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