JAMB Mathematics questions: Variation

23 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Variation· JAMB

   T varies as the square root of L. If T = 2 when L = 4, find T when L = 16.

   • A2
   • B8
   • C16
   • D4

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   Explanation and discussion

2. Question 22· Variation· JAMB

   y varies directly as x². If y = 12 when x = 2, find y when x = 3.

   • A36
   • B18
   • C27
   • D9

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   Explanation and discussion

3. Question 23· Variation· JAMB

   The time to complete a job varies inversely as the number of workers. If 6 workers take 10 days, how long will 15 workers take?

   • A25 days
   • B4 days
   • C6 days
   • D9 days

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   Explanation and discussion