Question

In each question there is a relationship between first two terms Same relationship exists in the next two terms Blank term (?) is out of the four alternatives given below Find the correct alternative
3 : 12 : : 5 : ?

• A. 18
• B. 25
• C. 22
• D. 30

Answer 1

The correct option is D 30

Clearly $3:3^2+3=12$ similarly $5:5^2+5=30$