The length of a hall is 21 m and the width is 14 m. The sum

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The length of a hall is 21 m and the width is 14 m. The sum of the areas of the floor and the flat roof is equal to the sum of the areas of the four walls. Find the height of the hall.

[SSC CGL 27 July 2023 Shift 2 With Answers]

A

8.6 m

B

8.2 m

C

8.8 m

D

8.4 m

EXPLANATION

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