Question

The average price of three items of furniture is $Rs15000$. If their prices are in the ratio $3:5:7$, the price of the cheapest item is:

• A. $Rs9000$
• B. $Rs15000$
• C. $Rs18000$
• D. $Rs21000$

Answer 1

Answer: (A)

$Rs9000$

Let the price of items be $3x,5xand7x$

So, $3x+5x+7x=15000\times 3$

$15x=45000$

$x=\frac{45000}{15}$

$x=3000$

$3x=3\times 3000=Rs.9000$

$5x=5\times 3000=Rs.15000$

$7x=7\times 3000=Rs.21000$

Cost of cheapest item is Rs.9000