The most suitable soil for the cultivation of cotton is

?% of 320 = 40% of 40 × 5

(22² × 8²) ÷ (92.4 ÷ 4.2) =? × 32

42% of 400 + 38% of 800 + ?² = 728

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

{(60% of 250) + √144} ÷ (3² - 4) = ?

Determine the simplified value of following expression:

0.998 + 0.882 + 0.12 

√225 + 27 × 10 + ? = 320

(26)² = {(20% of 40% of 18200) ÷ ?} × 1664 ÷ 128 

(2 ÷ 3) × (4 ÷ 12) × (? ÷ 10) × 45 × (1 ÷ 5) = (? ÷ 6) + (2 ÷ 5)

What is the value of 14³ + 16³ + 18³ + … + 30³?