Which of the following substances is insoluble in

If √3ⁿ 729, then the value of n is equal to:

Simplify the following expressions and choose the correct option.

18² + (27 ÷ 3) × 11 − 250 = ?

√144 × √121 + 25% of 600 = ? + 256

Simplify the following expression:-

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

? × 18 + 3072 ÷ 24 = 20% of 1900 

Simplify the following expression:

    (525 +175) ² - (525 – 175) ² / (525 × 175)

? = 6.25% of 240 + 25 ² + 17 ² – 16 × 17

(8.4 × 6.5 ×2.52 )/(5.04 ×3.25 ×2.1) = ?

Simplify: 3/4 of 2½ + 2/3 of 1½