In a row of 40 students R is 5th from the right end and there are 10 students between R and D. What is D’s position from the left end of the row?

Question

Question

This question was previously asked in

Maha TAIT Official Paper (Held On 12 Dec 2017 Shift 2)

Answer 1

According to the given information:

In a row of 40 students, R is 5th from the right end and there are 10 students between R and D.

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Therefore the position of D from the right will be '16th'.

Now, D’s position from the left end of the row:

Total students = D’s position from the left + D’s position from the right - 1 (D added two times from both sides)

⇒ 40 = D’s position from the left + 16 - 1

⇒ 40 = D’s position from the left + 15

⇒ D’s position from the left = 40 - 15

⇒ D’s position from the left = 25th

Thus, the position of D from the left end of the row is '25th'.

Hence, the correct answer is "25th".