the average of three numbers is 12 . the two numbers are 15 and 10 . then what will be the third number
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the average of three numbers is 12 . the two numbers are 15 and 10 . then what will be the third number
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Answer:
11
Step-by-step explanation:
Average:-
The third number is 11
Hope it helps you!
Step-by-step explanation:
Given average = 12
Two numbers = 15 and 10
Let the third number be x
Average = Sum of values / Number of values
Average= (15+10+x) / 3
12 = ( 25 + x ) / 3
12 X 3 = 25 + x
36 = 25 + x
x = 36 - 25
x = 11