The length of a rectangle is 38 m and 342 m 2 is its area If the area of rectangle is increased to 2...........

Quantitative Aptitude (CDS) Mensuration 2D

The length of a rectangle is 38 m and 342 m^2 is its area. If the area of rectangle is increased to 2(1/3)times the original area by increasing its length only. Find the new perimeter is?

186.32m

190m

260m

160m

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Explanation:

Area =342 m^2
L×b = 342
B =342/38
B=9 m
New area =342(7/3)
=114×7 m^2
=798m^2
Let new length is L1
L1 × B =798
L1= 88.66 m
New perimeter =2 ×(9+88.66)
=186.32 m