A cheetah runs 180 km in 1 and half hrs-
a. how much time will he take to cover 60 km.
b. how many km will it cover in 2 and half hrs.
a) 180 / 90 (it is 90 because of i have converted it into minutes) = 60 / x
therefore , time taken for covering 60 kms will be = 90 * 60/180( cross multiplication )
x = 30 min.
b) we will do same but this time we will take x on place of distance
therefore, equation = 180/90 = x/150
x = 180 * 150 / 90
x = 300 kms.
hope it helps................