Let's take an mathematical example
Let's find the ratio of volume of a cone and cylinder if radius and height are same for both .
See
- V for cone=1/3πr²h
- V for cylinder=πr²h
The ratio is 1:3
Factors of 24: 1,2,3,4,6,8,12,24
factors of 30: 1,2,3,5,6,10,15,30
factors of 42: 1,2,3,6,14,21,42
The answer is:
D. Ac = {xΙx ∈ U and is an even positive integer}
:)