Question

A dealer bought 100 watches for 400Rs each.He sells 20 of them at a gain of 5%. At what price per watch must he sell the remaining watches so as to gain 20%on the whole transaction​

Answer 1

Answer:

The Selling price op each watch out of remaining watches is Rs.495

Step-by-step explanation:

Total no. of watches = 100 watches

CP of 1 watch = Rs.400

CP of 20 watches = $400 \times 20 = 8000$

Gain% = 5%

SP of 20 watches = $SP=\frac{CP(100+P\%)}{100}$

$SP=\frac{8000(100+5)}{100}$

$SP=8400$

Let SP of 1 watch out of remaining be x

So SP Of 80 remaining watches = 80x

CP of 80 watches = 80*400 =32000

Total CP of 100 watches= 40000

Total SP = 8400+80x

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

To gain 20%on the whole transaction​

$20=\frac{8400+80x-40000}{40000} \times 100$

$x=495$

Hence The Selling price op each watch out of remaining watches is Rs.495

Answer 2

Answer:

the answer is 495

Step-by-step explanation:

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