5. Two and a half litres of paint is used to cover 725 sq m of area. (i) How much will be required to paint 2001 sq m of area ? (1i) How much area in sq m can be covered by 4.75 litres of paint ? ( Hint,to do the product of extremes and means )
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Answer:
Using Proportionality Method,
725 m^2 ------------> 2.5
2001 m^2 ----------> x
725 : 2.5 :: 2001 : x
PRODUCT OF MEANS = PRODUCT OF EXTREMES
2.5 × 2001 = 725x
2.5 × 2001 / 725 = x
=> x = 6.9 L
ANSWER (I) 6.9 L
Step-by-step explanation:
(ii) USING PROPORTIONALITY METHOD,
725 : 2.5 :: x : 4.75
PRODUCT OF MEANS = PRODUCT OF EXTREMES
2.5x = 725 × 4.75
x = 725 × 4.75 / 2.5
=> x = 1377.5 m^2
ANSWER (ii) = 1377.5 m^2
HOPE IT HELPS :):):):):)
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