if the price of the cooking gas rises by 15% by what percent should a family reduce it's consumption so as not to exceed the budget on cooking gas
a) 12 1/3 %
B) 13 1/23 %
C) 14 1/23 %
D) -15%
Answers
Answered by
5
If the price of the cooking gas rises by 15%, by what %, should family reduce its consumption so as not to exceed the budget on cooking?
The price of the cooking gas rises by 15%
New cost price = Old cost price × (100 + increase %)/100
Consumption reduce = [(New cost price – Old cost price)/New cost price] × 100
Let the cost price of the cooking gas be 100.
New cost price of the cooking gas = 100 × (100 + 15)/100
Consumption reduce = [(New cost price – Old cost price)/New cost price] × 100
option b) is correct
Answered by
0
option B
Step-by-step explanation:
Reduction in consumption:
=(15/115) × 100
=1500 / 100
=13 1/23%
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