Question

16 taps can fill a petrol tank in 18 minutes. the time taken for 9 taps to fill the same tank will be ______ minutes. solve this in only inverse proportion

Answer 1

Given..

16 taps can fill in 18min..

9 taps can fill in X mins (suppose)

.'. 16/9=18/X

.'. 16=18x9/X

.'. 16xX=18x9

.'. X=18x9/16

.'. X=162/16

.'. X=10min and 7.5sec