Math, asked by Anonymous, 1 month ago

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 Anonymous
5

 \red{ \qquad \underline{ \pmb{{ \mathbb{ \maltese  \:  COMPLETE \:  \:  QUESTION  \:   \maltese }}}}}

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?

\huge\boxed{\fcolorbox{purple}{ink}{GIVEN:}}

The price of the cooking gas rises by 15%

\huge\fbox\pink{✯Formula Used:✯}

New cost price = Old cost price × (100 + increase %)/100

Consumption reduce = [(New cost price – Old cost price)/New cost price] × 100

\huge\fbox\pink{✯Calculation:✯}

Let the cost price of the cooking gas be 100.

New cost price of the cooking gas = 100 × (100 + 15)/100

⇒ 115

Consumption reduce = [(New cost price – Old cost price)/New cost price] × 100

⇒ [(115 – 100)/115] × 100 \\⇒ 1500/115 \\⇒ 300/23 \\  = 13 \frac{1}{23}\%

  \Large \orange{\qquad \underline{ \pmb{{ \mathbb{ \maltese  \:SOLUTION  \:   \maltese }}}}}

option b) is correct

Answered by crankybirds30
0

option B

Step-by-step explanation:

Reduction in consumption:

=(15/115) × 100

=1500 / 100

=13 1/23%

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