If a number is multiplied by three-fourth of itself , the value thus obtained is 10800 . What is that number?

A ) 120 ✅

B ) 150

C ) 180

D ) 90


Explanation:

Let's solve this step by step.

✅ Let the number be x

According to the question:

X×3/4X=10800

✅ Step 1: Multiply the expression

3/4X²=10800

So:

X² = 10800×4/3

X² = 43200/3

X² = 14400

√X²=√14400

✅ Step 3: Take square root

√X²=√14400

12O

✅ Final Answer:

That number is 120.