Exams › IBPS PO › Quantitative Aptitude

(2.99² × 3.99² × 4.99) ÷ 35.99 = (?)² − 79.99

1. 12
2. 20
3. 10
4. 25

Correct answer: 10

Solution

≈3²×4²×5÷36 = 9×16×5÷36 = 720÷36 = 20. 20=(?)²-80 → (?)²=100 → ?=10.

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