Question

X. Find the mean of:
(a) the first five multiples of 7
(c) all factors of 54
(b) the first ten even natural numbers
(d) the first six triangular numbers
[Hint: 1, 3, 6, 10, ...​

Answer 1

Answer:

a the first five multiples of 7 are 14,21, 28 ,35 42

b. 2,4,6,8,10,12,14,16,18 20

c. 1,2,3,6,9,18,27,54.

d. I don't understand

Answer 2

Answer:

I) 21 (ii) 11 (iii) 15 (iv) 9.33