Question

2-4
Determine the following ratio from a proportion
Also write the middle terms and extreme
terms where the ratios from a proportion
39l:65l::6bottles 10bottles​

Answer 1

Answer:

25 cm ∶ 1 m

= 25 cm ∶ (1 x 100) cm = 25 cm ∶ 100 cm = 1 ∶ 4

Rs. 40 ∶ Rs. 160 = 1 ∶ 4

Since the ratios are equal, therefore these are in proportion.

Middle terms = 1 m, Rs. 40 and Extreme terms = 25 cm, Rs. 160

(b) 39 litres ∶ 65 litres =

6 bottles ∶ 10 bottles = 3 ∶ 5

Since the ratios are equal, therefore these are in proportion.

Middle terms = 65 litres, 6 bottles and Extreme terms = 39 litres, 10 bottles

(c) 2 kg ∶ 80 kg = 1 ∶ 40

25 g ∶ 625 g = 1 ∶ 25

Since the ratios are not equal, therefore these are not in proportion.

(d) 200 ml ∶ 2.5 litres

= 200 ml ∶ (25 x 1000) litres = 200 ml ∶ 2500 ml = 2 ∶ 25

Rs. 4 ∶ Rs. 50 = 2 ∶ 25

Since the ratios are equal, therefore these are in proportion.

Middle terms = 2.5 litres, Rs. 4 and Extreme terms = 200 ml, Rs. 50.

Step-by-step explanation: