Question

On selling a calculator for Rs 1325 a man gain 6 per cent. For how much should he sell it to gain 12 per cent

Answer 1

Hope it helps!!!

Suppose the original price of calculator is x.

Gain percentage = 6%

Selling price = Rs.1325

So we have the selling price of calculator as;

=>x+x×6/100 = 1325

=>x+3x/50 = 1325

=>53x/50 = 1325

=>x = 1325×50/53 

=> 1250

So the original price of calculator = Rs.1250

Now, to make a profit of 12%.

Selling price =>1250+1250×12/100
 =>1250+150  
=> Rs.1400

Therefore,

Selling price of calculator must have Rs.1400 to make a profit of 12%.

#Be Brainly✌️

Answer 2

Hey there!

The formula for gain percent

( selling price - cost price ) / cost price * 100

Let us take cost price as ‘ x ‘

Selling price = 1325

If we substitute

( 1325 - x ) / x * 100 = 6

132500 - 100x = 6x

132500 = 106x

X = 132500 / 106

X = 1250

Cost price = 1250

Gain = 12%

Cp = 1250

Sp = x

( ( x - 1250 / 1250 ) ) * 100 = 12

( 100x - 125000 ) = 12 * 1250

100x - 125000 = 15000

100x = 125000 + 15000

100x = 140000

X = 140000 / 100

X = 1400

Sp would be 1400 to get 12% gain

Hope my answer helps!

#BeBrainly

@sid071