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SSC CGL 2016 PYQ — Question 20

SSC CGL Tier II Quant - 30/11/2016 • Quantitative Aptitude • Q20

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If the parallel sides of a trapezium are 8 cm and 4 cm, M and N are the mid points of the diagonals of the trapezium, then length of MN is:

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Correct answer: D

Explanation

The correct answer is option 4 i.e. 2 cm

AD = 4 cm

BC = 8 cm

Since, M and N are midpoints:

We know that, the line segment joining the midpoints of the diagonals of the trapezium is parallel to the parallel sides and equal to half their difference.

So,

MN = (BC - AD)/2 = (8 - 4)/2 = 4/2 = 2 cm