Question

(MATHS)
Q.1 The mean of the prime factors of 24 is-
(a) 2
(b) 2.5
(c) 4
(d) 7.5
Q. 2 if mode of 4,9,5,4,9,4,9 and X-10 is 9 then x is.
(a) 10
(b) 12
(c) 14
(d)19​

Answer 1

Answer:

By getting factors of 24 we get

24=2×2×2×3

The mean is the average of the numbers.

It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Mean of the factors will be

=

4

2+2+2+3

=

4

9

So, the correct answer is option B.