Question

a jar contains 72 marbles. there are twice as many red marbles as blue marbels. how many red marbles are there

Answer 1

24 red marbles and 48 blue marbles

Answer 2

There are 48 red marbles.

Explanation:

Total number of marbles = 72

Let the blue marbles be x.

Now, it has been given that there are twice as many red marbles as blue marbles. Hence, we have

Red marbles = 2x.

Hence, we have the equation

x + 2x = 72

3x = 72

x = 24

Hence, red marbles = 2 × 24 = 48

There are 48 red marbles.