Question

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

Answer 1

In LHS

25cm:1m

=25/100

=1/4

In RHS

Rs40:Rs160

=40/160

=1/4

So

LHS=RHS

so

25cm:1m=Rs40/Rs160

Answer 2

Complete Question:

Determine if the following ratios form a proportion. Also, write the middle terms and extreme terms where the ratios form a proportion.

1) 25 cm: 1 m and 2) Rs 40:Rs 160

Solution:

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

____________________________________

2)

Rs 40 : Rs 160

40 : 160

simplifying by 40

1 : 4

The Ratios are equal , Therefore these are in proportion .

Finding Middle Terms -

Middle Terms = 1 m , Rs 40

Finding Extreme Terms -

Extreme Terms = 25 cm , Rs 160.