Question

2. Sarah has some blue marbles, twice as many red marbles as blue, and 8 yellow marbles. If she has a total of 32 marbles, how

Answer 1

Given:

Number of  blue marbles, twice as many red marbles as blue, and 8 yellow marbles.

She has a total of 32 marbles.

To find:

The number of red marbles.

Solution:

Let number of blue marbles be x.

Then, number of red marbles = 2x

Number of yellow marbles = 8

Total number of marbles = 32

$x+2x+8=32$

$3x=32-8$

$3x=24$

$x=8$

Now,

Number of red marbles $=2(8)=16$

Therefore, there are 16 red marbles.