Which Answer Figure will complete the pattern in the

?² × 25 = 4² × 21 + 17² 

(64/25)^?  × (125/512)^?-1 =  5/8

540 ÷ 6 + 25 % of 120 + ? * 8 = 72 * √9

Calculate the value of x²,   if [(8 + 6²) ÷ 4 of x + 2.5 × 5 = 4² + 20% of 10].

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

{(3600 ÷ 20 of 15) × 40 + 300} = ? % of 1500

√64 of √225 = √(25 + ?) X 12

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

32% of 4080 + 24% of 540 = ? % of 3200

[4(1/2) + 4(1/3)] × 12 – 42 = ?²