Question

5
2. The Third Proportional to 15 and 20 is
(a) 80/3
(b) 80
(c) 8017
(d) 120

Answer 1

Answer:

(a) 80/3

Step-by-step explanation:

Let third proportional be x

15,20,x are in continued proportion

15:20=20:x

by cross multiplication

15x=400

x=400/15

x=80/3(by simplifying )