Question

determine if the following ratios from a proportion:25cm: 1m And Rs40: Rs160

Answer 1

1m = 100cm
25cm : 1 m
25:100
1:4

40:160
1:4

Answer 2

1) 25 cm : 1m

changing metre to centimetres

1 m = 100 cm

The Ratio will be -

25 cm : 100 cm

25 : 100

simplifying by 25

1 : 4

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2) Rs 40 : Rs 160

40 : 160

simplifying by 40

1 : 4

The Ratios are equal , Therefore these are in proportion .