Question

a man sold a watch at a loss of 10 percent if he had taken rs70 more there would have been a gain of 4 percent find the cp of that watch

Answer 1

He sold his watch at loss of 5%. If he sells his watch for Rs. 56.25 more, he would gain 10%. It means that
15% = Rs. 56.25.
So,
1% = 56.25/15.
100% = (56.25 *100)/15 = Rs. 375.
Therefore, the cost price of the watch is Rs. 375.

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Answer 2

☆Hello friend☆

Let CP of watch be x

Loss%= 10
Loss= 10/100× x

SP= x- 10x/100= 90x/100

Similarly, in another case, Profit%= 4
Profit= 4x/100
SP= 104x/100

104x/100-90x/100= Rs 70
14x/100= Rs 70
x= Rs 70×100/14
x= Rs 500

Hence, CP of watch is Rs 500

$hope \: it \: helps$

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