Question

Prices of foodgrains have risen by 10% and of other
items of consumption by 15%. If the ratio of an
employee's expenditure on foodgrains and other
items is 2 : 5, by how much should his salary be
increased so that he may maintain the same level
of consumption as before, assuming that his present
salary is 3500

Answer 1

Answer:

Step-by-step explanation:

Sorry unable to answer

Answer 2

Answer:

The answer is Rs 475. Rs 475 increase in salary is required to maintain the same expenditure.

Step-by-step explanation:

Given,

Present salary = Rs 3500

The ratio of an employee’s expenditure on food grains and other items = 2:5

Prices of food grains increased by 10%

Prices of other items increased by 15%

Increase in salary to maintain the same consumption = ?

Calculations -

2x + 5x = 3500

7x = 3500

x = 500

Expenditure on food grains = 2x = 2(500) = Rs 1000

Expenditure on other items = 5x = 5(500) = Rs 2500

Increase in prices of food grains (a) = 10% of 1000 = (10/100)1000 = Rs 100

Increase in prices of other items (b) = 15% of 2500 = (15/100)2500 = Rs 375

Increase in salary to maintain the same expenditure = a + b = 100 + 375 = Rs 475.

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