Question

(a) 25 cm: 1 m and 40: 160
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Answer 1

Given:

25cm: 1m and 40:160

To Find:

Will they form a proportion?

Solution:

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

And 40:160= 1:4

Both ratios are of same value.

And 25*160 = 100*40=4000( cross product of terms in proportion are equal, say a,b,c, and d are in proportion. Then, $\frac{a}{b} = \frac{c}{d}$ or, $ad= bc$)

Therefore, 25cm: 1m and 40:160 will form a proportion.

Answer 2

Answer:

refer to the attachment

hope it helps you