What will come in place of the question mark ‘?’ in the following question?
(4 × 6 – 18 ÷ 3) × [192 ÷ {(5 + 3) × 4} – 2]Using the BODMAS rule,
B – Bracket in order (), {}, []
O – of
D – Division
M – Multiplication
A – Addition
S - Subtraction
(4 × 6 – 18 ÷ 3) × [192 ÷ {(5 + 3) × 4} – 2]
(24 – 6) × [192 ÷ {8 × 4} – 2]
⇒ 18 × [192 ÷ 32 – 2]
⇒ 18 × [6 – 2]
⇒ 18 × 4
∴ (4 × 6 – 18 ÷ 3) × [192 ÷ {(5 + 3) × 4} – 2] = 724. The fourth proportional to 3, 4 and 15 is?
5. What should come in place of question mark ‘?’ in the following number series? 0, 6, 24, 60, 120, ?
6. What should come in place of question mark ‘?’ in the following number series? 4, ?, 78, 276, 888
9. What will come in place of question mark (?) in the following question? (√5)n = 15625, then n3 = ?