Question

the price of a TV is 7 times the price of aa radio. if the price of TV is 21000rs what is the price of radio​

Answer 1

Step-by-step explanation:

Correct Question:-

The price of a TV is 7 times the price of a radio. if the price of TV is 21000 what is the price of radio?

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• Let price of radio be x.
• So, price of TV is 7x.

Concept:-

Ratio and Proportion

Let's Solve!

$7x = 21000$

• This is because the constant is completely based on x.
• And also, price of TV is justified.

$x = \dfrac{21000}{7}$

$x = 3000$

Hence, the Radio costs 3000 Rs.

Note:-

• X is taken as the basic constant.
• We need to assume an variable in order to solve tap and Proportion questions.

Answer 2

Answer:

RS 3,000

Step-by-step explanation:

Given,

price of a TV = 7 times the price of a radio

= RS 21,000

Need to find,

price of radio= ??

Solution

price of TV = RS 21,000

price of radio = 7 times the price of TV

= RS 21,000 ÷ 7

= RS 3,000