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(630 ÷ 18 + 24 of 25) ÷ 5 = ?

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

(15) ² - (13) ² = ?

√529 + √64 + 9² = ?

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

3.6 X 15 + 4.5 X 12 = 40% of (? - 50)

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

216 ÷ 6 + √? - 126 ÷ 7 = 23 X 2 

245 + (45 ÷ 3 + 5) × 6 - 125 = ?

13 X √? + 256 ÷ 4 = 30% of 900 - 50

Find the simplified value of the given expression:

7 of 9 ÷ 3 × 5² + √81 – 14

(392 + 427 + 226 – 325) ÷ (441 + 128 – 425) = ? 

Simplify the following expression:-