Question

1. Determine if the following are in proportion:
(i) 8, 10, 16, 20
(ii) 3, 4, 6, 7
(iii) 18, 36, 72, 144
(iv) 5, 7, 40, 56​

Answer 1

c is the correct answer

Step-by-step explanation:

In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity.

Answer 2

If the terms follow the condition
Product of extremes = product of means
Then the terms are said to be in proportion
1) 8:10 :: 16::20
8x20=10x16
160=160
The terms are in proportion

2) 3:4 :: 6:7
3x7=4x6
21=24. It is not possible
So the terms are not in proportion

3) 18:36::72:144

18x144=2592
36x72=2592
The terms are in proportion

4) 5:7 ::40:56
5x56=280
7x40=280
The terms are in proportion