The price of an article was decreased by 10% and again reduced by 10%. By what per cent should the price have been reduced once, in order to produce the same effect as these two successive reductions ?
Options:
A . 19%
B . 25%
C . 20%
D . 15%
Answer: Option A Answer: (a) Using Rule 6, If a number is first decreased by a% and then by b%, then net decrease per cent is $(-a -b + {ab}/100)$% (–ve sign for decrease)
Submit Comment/FeedBack