Question

76. The ratio of cost price to selling price
is 5:7. The profit percent is:
1) 10
2)
20
3) 25
4) 40​

Answer 1

Answer:

(3) 25 is the cost price to selling price

Answer 2

Answer:

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Step-by-step explanation:

Given that

The ratio of cost price and the selling price is 5:7.

Cost price = CP

Selling price = SP

Profit = P

Loss = L

We know that

SP = CP + P or L

$P\ or\ L=\dfrac{SP - CP}{CP}$

$P\ or\ L=\dfrac{SP }{CP}-1$

Given that

CP/SP= 5/7

SP/CP = 7/5

Now by putting the values in above equation

$P\ or\ L=\dfrac{7 }{5}-1$

$P\ or\ L=\dfrac{2 }{5}$

This is positive quantity is means that it is profit (P).If it come out negative then it will be loss(L).

$P=\dfrac{2 }{5}$

P = 0.4

$P=\dfrac{4 }{10} \times 100$

P = 40 %

It means that profit is 40 %.