Question

The price of commodity A increases by 15 paise
every year, while the price of commodity B
increases by 25 paise every year. If in the year
2004, the price of commodity A was 13.5 and that
of B was 10.5, then in which year the price of
commodity B will be equal to the price of
commodity A?​

Answer 1

Answer:

Let Us Consider A Be The Year At Which The Commodity Of X Will cost 40 pause more than the community Y

A Part From That Data Converted In To The Mathematical Form

Then

X=4.20+0.4 A And Y=6.30+0.15 A

Now You Have To Find Out The Year At Satisfied Given Condition Then

X-Y=0.4

4.20+0.4 A-(6.30+0.15 A) =0.4

-2.1+0.25A=0.4

0.25 A=0.4+2.1=2.5

A=2.5/0.25

A=10

That Means After 10 Years The Required Condition Satisfied

2011 Is The Required Year In Which The Given Condition Satisfies