NTSE Stage 2 MAT 2019 Exam Question Paper

Question : 64 of 100

Marks: +1, -0

Two friends Mr. A and Mr. B stand according to figure 1.The two friends then interchange their positions as givenin figure 2.

The height of the wall from the ground is _____.

Solution:

ATQ, let height of the wall is x
From figure (1)

110+A=x+B

...(1)
From figure (2)

130+B=x+A

...(2)
Adding (1) and (2)

240+A+B=2x+A+B

⇒ Height of the wall from the ground (x)

=240/2=120cm

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