Question

200 g of fertiliser is required for a plot of land that has an area of 8 m². Find (i) the amount of fertiliser needed for a plot of land that has an area of 14 m², (ii) the area of land that can be fertilised by 450 g of fertiliser. 168 Chapter 7 Ratio, Rate, Time and Speed​

Answer 1

Answer:

(i) 350 gm is the amount of fertiloser needed.

(ii) 18 m^2 is the area of land that can be fertilised.

Answer 2

Answer:

(i). since 8m sq of land=200g of fertilizer

1m sq =200/8

therefore 14m sq = 200/8 ×14

I.e. 350

Step-by-step explanation:

since 200g = 8m sq of land

then 1 g = 200/8

therefore- 450g =200/8 ×450

I.e. 11250