ibps-rrb-os1 2021 · Question 81 of 173

Quantity 1: 𝑥; 𝑥3 − 2𝑥2 − 𝑥 + 2 = 0 Quantity 2: 𝑎 + 3 = 0, hence, value of ’a’.

Quantitative Aptitude (misc)

AQuantity 1 > Quantity 2Correct
BQuantity 1 ≥ Quantity 2
CQuantity 2 > Quantity 1
DQuantity 2 ≥ Quantity 1
EQuantity 1 = Quantity 2 or Relation cannot be established

Answer: A. Quantity 1 > Quantity 2

Explanation

Quantity 1: x3 − 2x2 − x + 2 = 0 x2(x − 2) − 1(x − 2) = 0 (x2 − 1)(x − 2) = 0 (x + 1)(x − 1)(x − 2) = 0 x = −1, 1, 2 Quantity 2: a + 3 = 0 a = −3 So, quantity 1 > quantity 2

Source: IBPS RRB PO Mains 2021 Memory Based Paper (Adda247/BankersAdda) · memory-based

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