The ratio of three numbers is 3 : 5 : 4 and the sum of

24² + 80% of 1620 = ? × 16 – 35% of 800

I. 8x² - 74x + 165 = 0

II. 15y² - 38y + 24 = 0

323 × 15 + (?)² = 4989

(1/3) + (2/5) + (3/4) + (11/10) = 3 – (?/12)

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

45% of (√6400 × 5) = ? + 111 

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

60% of 280 + 40% of 120 = ? ÷ 4

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

?% of 192 = 24² – 48 × 11

The value of 5³ × 5⁴ × 5² = ?