Question

It takes 17 full specific types of trees to make one tonne of paper. If there are 221 such trees in a forest, then
(i) What fraction of the total number of specific types trees of the forest will be used to make4tonnes of paper?
(ii)How much of paper has to be saved in order to save9/13part of the total number of specific types trees of the forest?
PLS BE FAST

Answer 1

Answer:

Step-by-step explanation: (i) Number of trees required to make one tonne of paper = 17

Total number of trees = 221

∴ Fraction of forest will be used to make one tonne of paper = 17/221 = 1/13

(a) Fraction of forest will be used to make 5 tonnes of paper = 1/13 x 5 = 5/13

(b) Fraction of forest will be used to make 10 tonnes of paper = 1/13 x 10 = 10/13

(ii) Let we have to save x tonnes of paper to save 7/13 part of forest

Fraction of forest will be used to make x tonnes of paper = 1/13 x x = x/13

Now, x/13 = 7/13

x = 7/13 x 13 = 7