Question

state which of the following are in proportion? 8,80,6,9.​

Answer 1

Answer:

8:80::6:9

8*9=80*6

72=480

they are not in proportion

Answer 2

Given: 8,80,6,9

To find Whether the above numbers are in proportion or not.

Solution: In mathematics, ratio and proportion are interconneced to each other. The pair that is in order and say r and s are two numbers which can be written as r/s where the denominator s never be 0. The two ratios which are equal to each other is referred to proportion in mathematics.

Now the above numbers can be written as 8:80::6:9 as the form of proportion.

∴ 8:80::6:9

⇒(8/80)=(6/9)   [the ratios can be written as this]

⇒(8×9)=(6×80)

⇒72=480

Since the L.H.S.≠ R.H.S., therefore the numbers are not in proportion. [proved]

Hence the numbers 8,80,6,9 are not in proportion.