Which one of the following writs is issued during

2 X 25 + (30% of 80) ÷ (10% of 120) = ?

[(40)² ÷ 32 × 4] ÷ 50 = ?

8^2.3 × 64^4.7 × 72^3.4 × 81^5.85 = 72^?

Simplify the following expression.

(3-3 × 3 + 3 ÷ 3 + 3 × 5) × 2 of 5 + (2 + 2 ÷ 2 + 2 × 2 - 2)

Find the value of 16 x [(8 - 5) of 12 ÷ 4].

961 × 4 ÷ 31 – 15% of 180 = ? – 7³

26 ² – 13% of 400 + (529 ÷ 23 ² ) = ? ² 

Find the value of 27 ÷ 2 of 16 of [6 ÷ 8 of (6 ÷ 2 + 5)] + (10 ÷ 2.5 + 1)

What will come in the place of question mark (?) in the given expression?

28 × 15 + 48% of ? = 780