College of Admission Tests Multan

Number System

Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.

Question: 7

Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number
  • 17
  • 15
  • 8
  • 3

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Correct Answer: D

If the number is x,
Then, x + 17 = 60 × 1 x
x2 + 17x - 60 = 0
(x + 20)(x - 3) = 0
x = 3, -20, so x = 3 (as 3 is positive)