Question

two and a half litres of paint is used to cover 725 m square area how many litres of paint will be required to paint the area of 2001 m square

Answer 1

Using Proportionality Method,
725 m^2 ------------> 2.52001 m^2 ----------> x
725 : 2.5 :: 2001 : x
PRODUCT OF MEANS = PRODUCT OF EXTREMES
2.5 × 2001 = 725x2.5 × 2001 / 725 = x
=> x = 6.9 L