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Diagram-Based Questions Question 6 – answer, explanation & discussion

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Question 6 Back to Exercise

The number line shows the years in which Riya and her brother were born.

Birth years
20052010201520202025RiyaBrother

In which year was Riya exactly twice as old as her brother?

  • A 2018
  • B 2023
  • C 2014
  • D 2019 Correct
Correct Answer: Option D

The age gap is always 2014 − 2009 = 5 years

Riya is twice his age when he is 5 and she is 10

That year = 2014 + 5 = 2019

Trap: 2018 makes him 4 and her 9.

Answer: 2019

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