Question

The average of five numbers is 496.If two of them are 117 and 140, find the average of remaining three numbers.

Answer 1

Let five observations are ; a , b, c, d, and e

given, average = 496

we know, average = sum of observations/total number of observations

496 = (a + b + c + d + e)/5

a + b + c + d + e = 496 × 5 = 2480

a/c to question, two observations are 117 and 140 .
Let a = 117 and b = 140

then, 117 + 140 + c + d + e =2480
c + d + e = 2480 - (117 + 140)
c + d + e = 2480 - 257 = 2223

now, average of remaining three observations
= (c + d + e)/3

= (2223)/3

= 741

Answer 2

Answer:

Average of the remaining 3 numbers is 741

Step-by-step explanation:

Average

= Sum of the observations / no. of observations

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