Question

Rasika has 12 balloons. She gave half of them to her friend Anisha and half from the remaining to Nidhi. How many ballons did she give away effectively?

• A. 9

Answer 1

The correct option is A 9
Rasika initially had 12 balloons.
Number of balloons she gave to Anisha $=\frac{12}{2}=6\text{ballons.}$
After giving half of the total number to Anisha, she had = 12 - 6 = 6 balloons.
Afterward, she gave half of the remaining to Nidhi.
So, the number of balloons she gave to Nidhi is
$=\frac{6}{2}=3$
So, the number of balloons left with her = 6 - 3 = 3 balloons

According to the unchanging relation,
$12-6-3=12-(6+3)=12-9$

So effectively Rasika had given 9 balloons in total to her friends.