Question

Check if the following forms proportion or not, If yes write the middle terms and the extremes terms.
12 kg : 8 kg :: 27 kg : 18 kg​

Answer 1

61 kg

SOLUTION:

i) 25cm:1m

1m=100cm

=\frac{25}{100}=\frac{1}{4}=1:4

rs40:rs160=\frac{40}{160}=\frac{1}{4}=1:4

since the ratios are in proportion, therefore these are in proportion.

ii) 39litres:65litres=\frac{39}{65}=\frac{3}{5}

6bottles: 10bottles=\frac{6}{10}=\frac{3}{5}=3:5

since, the ratio are equal, therefore thee are in proportion.

iii) 2kg: 80kg\frac{2}{80}=\frac{1}{40}=1:4

25g:65g=\frac{25}{65}=\frac{1}{25}=1:25

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