L&T Company Numerical Ability Area and Volume

The perimeter of a square is equal to the radius of a circle having area 39424 sq cm, what is the area of square?
(1) 1225 sq cm
(2) 441 sq cm
(3) 784 sq cm
(4) Can’t say
(5) None of these

Read Solution (Total 1)

(3) 784 sq. cm

Let the side of square =a cm and radius of circle=r cm
Given, 4a= r
Also Area of square= Pi*r^2= 39424, r^2=12544 or r=112
So a= r/4= 112/4=28
Hence Area of square=a^2=28^2=784 cm^2
8 years agoHelpfull: Yes(2) No(2)

L&T Other Question

Three friends A, B and C start running around a circular stadium and complete a single round in 8, 18 and 15 seconds respectively. After how many minutes will they meet again at the starting point for the first time?
(1) 12
(2) 6
(3) 8
(4) 15
(5) 18
Thirty men can complete a work in 36 days. In how many days can 18 men complete the same piece of work?
(1) 48
(2) 36
(3) 60
(4) 72
(5) None of these

Read more: http://www.bankersadda.com/2015/01/quant-quiz_5.html#ixzz4C2x1y199Thirty men can complete a work in 36 days. In how many days can 18 men complete the same piece of work?
(1) 48
(2) 36
(3) 60
(4) 72
(5) None of these