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  9. Q7

RBI Grade B Officer (General / DEPR / DSIM) 2019 · Question 7 of 120

Find the approximate value of question mark (?) in the following questions- (7.92)3 + (7.92)2 = −99.96 + (? )2

Approximation

  1. AA. 26Correct
  2. BB. 24
  3. CC. 36
  4. DD. 16
  5. EE. 25

Answer: A. A. 26

Explanation

(8)3 + (8)2 = −100 + (? )2 512 + 64 + 100 = (? )2 ? ≈26

Source: RBI Grade B 2019 Phase-I recollected paper with answers and solutions (Adda247 compilation) · memory-based

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