Question

The price of wheat has increse
By 12 preventing the reduction in consumption so there is no change on expenditure

Answer 1

Step-by-step explanation:

Let

′

x

′

be cost of wheat and

′

y

′

be household consumption.

∴ Initial expense =xy

Let new consumption =a

new cost =x(x+

100

30

)

=

10

13x

To keep expenditure same,

new expense = old (initial) expense.

⇒

10

13x

×a=xy

⇒a=

13

10

y

decrease in consumption =y−a

=y−

13

10

y

=

13

3

y

∴ % decrease =

y

13

3y

×100%

=

13

3

×100

=23

3

1

%