Question

Verifying that following digits are in proportion or not:
(1) $2,7,14,49$ (2) $3,21,5,35$ (3) $2,11,4,21$.

(1) In proportion
(2) In proportion
(3) Not in proportion.

Is this True or False?

• A. True
• B. False

Answer 1

The correct option is A True

(1) $\frac{2}{7}=\frac{14}{49}=\frac{2}{7}$

They are in proportion

(2) $\frac{3}{21}=\frac{5}{35}⟹\frac{1}{7}=\frac{1}{7}$

They are also in proportion.

(3) $\frac{2}{11}=\frac{4}{21}$

They are not in proportion.