Question

Determine if the following ratios form a
proportion. Also, write the middle terms and
extreme terms where the ratios form a
proportion.
(i) 25 cm: 1 m and 40: 160
(ii) 39 litres : 65 litres and 6 bottles :
10 bottles
(ii) 2 kg : 80 kg and 25 g : 625 g
​

Answer 1

1. 25cm:1m :: 40:160

25cm:100cm :: 40:160

1:4 :: 1:4

Extreme terms-- 25cm,160

Middle Term--1m,40

Yes

2. 39l:65l :: 6 bottles:10bottles

3:5 ::3:5

Extreme term -- 39l,10bottles

Middle Term--65l,6 bottles

Yes

3. 2kg:80kg :: 25g:625g

1:40 :: 1:25

No

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