The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hour completes one round in 8 minutes, then the area of the park is
let length = l , breadth = b l = 3x , b = 2x perimeter of the rectangular park = distance covered by the man in one round = 12 × (5/18) × 8 × 60 ( ∵ 1min = 60secs and converting 12km/hr to m/s by multiplying it by 5/18) = 1600 m 2(3x+2x) = 1600 5x= 800 x = 160 l = 3x = 160 × 3 = 480 b = 2x = 160 × 2 = 320 area of the rectangle = l × b = 480 × 320 153600 m2
Which of the following is definitely false?
How is P related to N?
How is A related to V?
There are only six members in a family. J is the only daughter of T. T is husband of U. R is the only daughter in law of U. K is the only son of his par...
Priya said to Neema,” That girl playing Badminton is the elder of the two sister of the son of my mother’s husband”. How is girl related to Priya?...
How is C related to D?
V is the father of T, who is the grandson of G. S is the only daughter of G. G has only two children and only one of them is married. O is the mother-in...
If U has only one daughter, then how many male members are there in the family?
How is S related to R, if T has only one daughter?
N has only two daughters U and P. P is married to O. O is father of S. U is married to V. B is daughter-in-law of P. How is S related to N?