Question

in a match box containing 120sticks ,15 sticks are defective find the percentage of good matchsticks in the Matchbox​

Answer 1

Total No. of sticks = 120
No. of sticks defective = 15
Percentage of sticks defective = 15/120x100
= 12.5%
Percentage of good sticks = 100%-12.5%
= 87.5%

Answer 2

Sticks=120
Defective =15
Good Sticks=105

105*100/120=525/6=87.5%