The cost of an article is first decreased by25% and then further decreased by 40%. Find the % change in the cost of the article.
The cost of an article is first decreased by25% and then further decreased by 40%. Find the % change in the cost of the article.
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Answer:
Decreased by 55%
Step-by-step explanation
let the cost be Rs.100
decreased by 25%=100-25
=Rs.75
decreased by 40%= (75×40)/100
=Rs.30
New cost= Rs.75‐30
Overall change =100-45=55
=55% decrease
Required %= 55/100×100