Question 64

A shopkeeper cheats to the extent of 9% while buying and selling fruits, by using tampered weights. His total gain in percentage is:

Solution

We know that formula of Gain % is :

[ { ( 100 + common gain %)² / 100 } − 100 ] %

Shopkeper cheats to the extent of 8% in time of buying and selling fruits. So, common gain % is 9 %.

Now, we have to put the values of common gain % in above formula and we get : $$({ \frac{( 100 + 9 \%)² }{100} } − 100 )\%$$

= 118.81 - 100 %

= 18.81 %

Total gain in percentage is 18.81.

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