Question

. The average of 5 numbers is 42. if we
include sixth number 48, then the new
average will be?
(a) 44
(b) 45
(c) 43
(d) 46​

Answer 1

Answer:

43

Explanation:

average = 42

total sum = 42 × 5 = 210

new number = 48

210 + 48 = 258

new average = 258 ÷ 6 = 43

Answer 2

Answer:

43

Explanation:

Average = sum/no. *of quantities

So here,

=> 42 = (sum of numbers)/5

=> 210 = sum of numbers

When 48 is added:

Sum = 210 + 48 = 258

Numbers = 5 + 1 = 6

Thus,

Average = 258/6

= 43