Question

Are these numbers $3:27::9:9$ in proportion?

• A. No
• B. Yes
• C. Sometimes
• D. Cannot be determined

Answer 1

The correct option is A No

The numbers are $3:27::9:9$

The given numbers will be in proportion if $3:27=9:9$

i.e. if $\frac{3}{27}=\frac{9}{9}$

if $3\times 9=9\times 27$

if $27=243$ which is not true.

Thus, the numbers can't be in proportion.

Hence, they are not in proportion.