Question

Direction: What will come in the place of the question mark ‘?’ in the following question?

25% of 400 + 20% of 325 – 50% of 130 = $?^2$

• A. 8
• B. 12
• C. 9
• D. 10

Answer 1

Answer:

D. 10

Concept used: 

Follow the BODMAS rule to solve this question, as per the order given below.

Calculations:

25% of 400 + 20% of 325 – 50% of 130 = ?²

⇒ $\frac{25}{100}\times{400}+\frac{20}{100}\times{325}-\frac{50}{100}\times{130}$ = ?²

⇒ 100 + 65 – 65 = ?²

⇒ ?² = 100

⇒ ? = √100

⇒ ? = 10

∴ Value of ? is 10