The price of fuel decreases by 40%, 10% and 50%
The price of fuel decreases by 40%, 10% and 50% in three successive months, but increases by 50% in the fourth month. What is the percentage increase/decrease in the price of fuel in the fourth month as compared to its original price?
ईंधन की कीमत क्रमागत तीन महीनों में 40%, 10% और 50% कम की गई है, लेकिन चौथे महीने में 50% वृद्धि की गई है। चौथे महीने में ईंधन की कीमत में उसकी मूल कीमत की तुलना में कितने प्रतिशत की वृद्धि/कमी हुई है?
Detailed Solution & Logic
Correct Answer:
Decreases by 59.5% की कमी
Let original price = 100
After 40% decrease = $ 100 \times 0.6 = 60 $
After 10% decrease = $ 60 \times 0.9 = 54 $
After 50% decrease = $ 54 \times 0.5 = 27 $
After 50% increase = $ 27 \times 1.5 = 40.5 $
Net change= 100 - 40.5 = 59.5
Answer = 59.5% decrease
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