Math, asked by shaifa75, 1 year ago

Due to a 30% reduction in the price of sugar, a family buys 32 kg of sugar more so that the expenditure is reduced by only 16% then know the fresh consumption.

Answers

Answered by kdipali313
7

Answer:

Step-by-step explanation:

Let original rate of sugar was Rs x/kg. [expenditure Rs.x and consumption 1kg]

New rate of sugar = Rs(x-30/100×x)/kg= Rs.(7x/10)/kg

New expenditure = Rs.(x+10/100.x) = Rs.(11x/10)

In Rs.(7x/10) the quantity of sugar = 1 kg.

In. Re.1. the. quantity. of sugar. =10/7x kg

In. Rs. (11x/10)the quantity of sugar = (10×11x)/(10×7x)= 11/7kg.

Consumption increased = 11/7 - 1 = 4/7 kg.

Percentage increased in consumption= {(4/7)/1}×100= 400/7. % =57.14 %. Answer.

This is the original answer !

Hope it is correct.

Answered by jcsampar
3

Answer:

192 Kg

Step-by-step explanation:

Let,

Otiginal Price = a

Initial Consumption = b

Initial Expenditure, ab = ₹100 ------ (1)

Change in Price = a - 30% of a = 7a/10

increase in consumption = b + 32 Kg

New Expenditure:

(7a/10) x (b + 32) = ₹100 - 16 % of ₹100 = ₹84

=> (7ab/10) + (224a/10) = 84

=> 7ab + 224a = 84 x 10

=> 700 + 224a = 840 [since ab=100]

=> 224a = 840 - 700

=> a = 140/224 = 5/8 ------(2)

Therefore, value of equation 1 becomes

5b/8 = 100

=> b = 800/5 = 160

i.e., Initial consumption = 160 Kg

and fresh consumption = 160 + 32 = 192 Kg.

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