A tailor buy lining clothes for a wholesale mechant and cheats him by using a measurement tape which is 5 cm longer than the normal tape. The tailor offers the customers at cost price while stitching different garments and uses measuring tape, which is 5 cm shorter than normal tape. The gain per cent is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. %
Given that
A tailor buy lining clothes which is 5 cm longer than the normal tape
The tailor offers the customers at cost price, by measuring tape which is 5 cm shorter than normal tape.
If he first buys a cm more and then sell a cm less
So, Gain % = (2a/(100 - a) × 100
Gain % = 2 × 5/95 × 100 = %