Question

IN A BAG THERE ARE 48 BLUE AND RED COLOURED MARBLES.THE BLUE MARBLES ARE ONE-THIRD OF THE RED MARBLES.HOW MANY BLUE MARBLES SHOULD BE ADDED TO THE BAG TO MAKE THEIR RATIO 1:1

Answer 1

Answer:

24

Step-by-step explanation:

Let the number of red marbles be x.

Therefore, the number of blue marbles = 48-x

According to the question, the number of blue marbles are 1/3rd of the red marbles.

No. of blue marbles= 1/3 × x

Hence,

$\frac{1}{3} \times x = 48 - x \\ = > \frac{1}{3} x + x = 48 \\ = > \frac{x + 3x}{3} = 48 \\ = > 4x = 144 \\ = > x = 36$

The number of red marbles is 36.

Therefore, the number of blue marbles = 48-36 = 12.

No of blue marbles to add to make their ratio 1:1 ( which means making the number of red and blue marbles equal ) = 36 - 12 = 24