Question

The cost of two red balls and five blue balls is ₹160. Find the correct equation for the above-mentioned statement among the given options.
$r$ = price of one red ball; $b$ = price of one blue ball

• A. $r+5b=₹160$
• B. $2r-5b=₹160$
• C. $3r+5b=₹160$
• D. $2r+5b=₹160$

Answer 1

The correct option is D $2r+5b=₹160$

The price of one red ball = $r$
So, the price of two red balls = $2r$
The price of one blue ball = $b$
So, the price of five blue balls = $5b$
Total price of the balls = $2r+5b$
Hence, $2r+5b=₹160$