Question

The average of 3 numbers is 50. the second no is greater than first by 3 but smaller than the third by 9 Find the Second no.

Answer 1

Answer:

48

Step-by-step explanation:

Hi,

Let the 3 numbers be a,b and c

Given that second no is greater than the first by 3

=> b = a + 3

=> a = b - 3  -------(1)

Given that the second no is smaller than the third by 9

=> b = c - 9

=> c = b + 9----------(2)

Given , Average of 3 numbers = 50

=> (a + b + c)/3 = 50

=> a + b + c = 150

Using (1) and (2), we get

b - 3 + b + b + 9 = 150

=> 3b + 6 = 150

=> 3b = 144

=> b = 48

Hence, the second no is 48.

Hope, it helps you !