Question

when the cost of tobacco was increased by 50% ascertained hard and smoker who maintained his formal scale of conception said that the Rise had increased his cost of living by 5% before the change in price the percentage of its cost of living was due to buying tobacco is​

Answer 1

Given: Cost of tobacco was increased by 50%.

To find: The percentage of its cost of living was due to buying tobacco is​?

Solution:        

• Now, let the cost of living be x and the cost of tobacco be y.

• So, we have given that the cost of tobacco is increased by 50%.

• So formulating it, we get:

          = 1/2 x y

• Now we have also given that  cost of living is increased by 5%.

• So formulating it, we get:

          = 5/100 x x

• So now equating it, we get:

            y/2  = 5x/100

            y/2  = x/20

            y = x/10

            y/x = 1/10

• So from this, the percentage of its cost of living was due to buying tobacco is​ 10%.

Answer:

              So the percentage of its cost of living was due to buying tobacco is​ 10%.

Answer 2

Given : the cost of tobacco was increased by 50% ascertained hard and smoker who maintained his formal scale of conception said that the Rise had increased his cost of living by 5%

To find : before the change in price the percentage of its cost of living was due to buying tobacco

Solution:

Let say Cost of Living  =  L

Cost of Tobacco  = T

cost of tobacco was increased by 50%

=> increase in cost of Tobacco = (50/100)T  = 0.5T

increased his cost of living by 5%

=> increase in Cost of living = (5/100)L = 0.05L

0.5T  = 0.05L

=> 50T  = 5L

=> T/L  = 1/10

=> ( T/L) * 100 = 10

Tobacco cost is 10 % of his living cost

percentage of its cost of living was due to buying tobacco = 10 %

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