Question

the ratio of blue marbles to white marbles in simrans bag is equal to 1 to 2 . if there are 20 blue marbles how many white marbles are there 1

Answer 1

40 marbles

Explanation:

because for every one blue marble there are two white marbels so if u time 2 by 20 it's 40

Answer 2

There are 40 white marbles in Simran's bag.

Solution:

Assume number of blue marbles as B and the number of white marbles as W

Given, ratio of blue marbles to white marbles i.e. B:W is
`\bold{1:2}`

Number of blue marbles B = 20

To find, number of white marbles W

The given ratio can be written as
`(1)/(2)` and is equal to the ratio
`\bold{B:W \rightarrow 20:W}`

Therefore,
`\bold{(1)/(2) = (20)/(W)}`

On bringing the common terms together we get,

`\bold{W=(20*2)/(1) \rightarrow (40)/(1) \rightarrow 40}`

Hence the value of x is 40.