Question

in a match box containing 120 sticks. 15 matchsticks where defective find the percentage of good match sticks in the match box???

Answer 1

no. of good matchsticks=120-15
=>105

percentage of good matchsticks=(105/120)*100
=>87.5%

Answer 2

Number of matchsticks in a box = 120
Number of detective matchsticks= 15
Number of good matchsticks= 120-15
= 105
therefore, percentage of good matchsticks = 105/120 × 100
= 21/24 × 100
= 7/8 × 100
= 700/8
= 87.5

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