Question

A red pebble is equal to 3 yellow pebbles a blue pebble is equal to a red and 2 yellow pebbles a green is equal to 3 red pebbles. What is the value in pebbles of a green pebble and a blue pebble divided by 2 red pebbles and a yellow pebble

Answer 1

Answer: 2

Explanation:

Given

Red pebble is equal to 3 yellow pebble

A blue marble is equal to a red pebble and 2 yellow pebble

A green pebble is equal to 3 red pebble

Suppose
`R,B,Y,G` represents red, blue, yellow, and green pebbles

`\therefore R=3Y\\B=R+2Y\\G=3R`

Express Red in terms of yellow in blue pebble equation

`B=3Y+2Y\\B=5Y`

Now, express Green Pebble in terms of yellow pebble

`G=3R=3(3Y)\\G=9Y`

Value of

`\Rightarrow (G+B)/(2R+Y)\\\\\Rightarrow (9Y+5Y)/(2* 3Y+Y)\\\\\Rightarrow (14Y)/(7Y)=2`