AFCAT Model Paper 2

Given:
Expression is 78 – [5 + 3 of (25 - 2 × 10)]
Concept Used:

Calculation:
Using BODMAS rule,
⇒ 78 – [5 + 3 of (25 - 2 × 10)]
⇒ 78 – [5 + 3 of (25 - 20)]
⇒ 78 – [5 + 3 of (5)]
⇒ 78 – [5 + 15]
⇒ 78 – 20 = 58
∴ The required value is 58.