Question: an article is bought for rs . 823 and sold for rs . 1000 , find the gain percent ?
A) 21.4 %
B) 21.5 %
C) 21.6 %
D) 21.7 %
E) 21.8 %
Correct answer: b
Grade: 7 | Topic: Ratios and proportions | Difficulty: Medium | Standard: 7.RP.A.3