Q.5 Find the whole quantity if
(a) 5% of it is 600
(b) 12 % of it is? 1080
(c) 40% of it is 500 km
(d) 70% of it is 14 minutes
(e) 8% of it is 40 litres
###### Answer :

(a) 5% of x = 600 = $$\frac{5}{100}$$×x = 600
Or, x = $$\frac{600×100}{5}$$ = 12000
(b) 12% of x = 1080 = $$\frac{12}{100}$$ × x = 1080
Or, x = $$\frac{1080×100}{12}$$ = 9000
(c) 40% of x =500 = $$\frac{40}{100}$$ × x = 500
Or, x = $$\frac{500×100}{40}$$ = 1250 km
(d) 70% of x = 14min = $$\frac{70}{100}$$×x = 14min
Or, x = $$\frac{14×100}{70}$$ = 20
(e) 8% of x = 40 liters = $$\frac{8}{100}$$×x = 40 liters
Or, x = $$\frac{40×100}{8}$$ = 500 litres