Question

the prices of a T.V set and a radio are in the ratio 7:2. If a TV set costs Rs3500 more than a radio,what is the price of a radio?

Answer 1

let the price of radio be x
then,the price of television be 3500+x
a/q,
x/3500+x=7/2
7x=7000+2x
5x=7000
x=1400

Answer 2

let the cost of TV and radio 7x and 2x respectively
according to question

the cost of radio =x
the coat of a TV x+3500₹

7x=2x+3500
5x=3500
x=700₹
the cost of radio equals to 2x so its cost is 1400₹