Question

it takes 25 full specific trees to make one tonne of paper. If there are 500 such trees in a forest, then to save 5/8 part of the forest how much paper do we have to save​

Answer 1

Answer:

"i. Number of trees required to make 1 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 × 5 = 5/13

b. Fraction of forest will be used to make 10 tonnes of paper = 1/13 × 10 = 10/13

ii. Let us assume that we have to save x tonnes of paper to save 7/13 part of the forest

Fraction of forest will be used to make x tonnes of paper = 1/3 × x = x/13

x/13 = 7/13

x = 7/13 × 13 = 7"

Answer 2

$\huge\red{A}\pink{N}\orange{S} \green{W}\blue{E}\gray{R} =$

"i. Number of trees required to make 1

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 × 5 = 5/13

b. Fraction of forest will be used to make

10 tonnes of paper = 1/13 × 10 = 10/13

ii. Let us assume that we have to save x

tonnes of paper to save 7/13 part of the

forest

Fraction of forest will be used to make x

tonnes of paper = 1/3 x x = x/13

x/13 = 7/13

x = 7/13 x 13 = 7"