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Ranking and Ordering · Question 20 of 66

Question 20

MediumOriginal question

Forty people stand in a row facing north. Irfan is 10th from the left end and Kajal is 13th from the right end. Mira stands exactly midway between Irfan and Kajal. What is Mira's position from the right end?

Options for question 20

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. Kajal from the left =40−13+1=28= 40 - 13 + 1 = 28.

  2. Midway between positions 10 and 28 is (10+28)÷2=19(10 + 28) \div 2 = 19 from the left.

  3. From the right =40−19+1=22= 40 - 19 + 1 = 22.

Worth noting

28 is Kajal's position from the left and 31 is Irfan's position from the right; neither is Mira's. 23 adds 1 twice in the conversion.

Concept
Midpoint of two positions, then the other end
Typical time
70 s
Your time
—
The rule this testsPosition in a row
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