Question

an electronic watch is sold for Rs 840 at a profit of Rs 90. Find its cost price and the profit percent.

Answer 1

Answer:

Given

SP of electronic watch =Rs 840

Profit =Rs 90

Let, CP of the watch =x

A/Q Rs840-Cp =Rs90

-CP =Rs90-Rs840

-CP = -Rs750

CP =Rs 750 ans

Answer 2

The cost price is Rs.750.

The profit percentage is 12%.

Step-by-step explanation:

Given : An electronic watch is sold for Rs 840 at a profit of Rs 90.

To Find : Its cost price and the profit percent ?

Solution :

The selling price is Rs.840.

The profit is Rs.90.

Cost price = Selling price - Profit

Cost price = 840 - 90

Cost price = Rs.750

The profit percentage is given by,

$P\%=\frac{P}{CP}\times 100$

$P\%=\frac{90}{750}\times 100$

$P\%=12\%$

The profit percentage is 12%.

#Learn more

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