Mean of three numbers is 50, if how of them are 30,50 what is the third number
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say the 3rd no. is x
thus (30+50+x)/3=50
=>x=150-30-50=70
thus (30+50+x)/3=50
=>x=150-30-50=70
brillantist:
See my next question.
Answered by
1
Find the sum of the 3 numbers:
Mean of the 3 numbers = 50 (Given)
Sum of the 3 numbers = mean x total number
Sum of the 3 numbers = 50 x 3
Sum of the 3 numbers = 150
Find the third number:
Third number = sum of all the numbers - the two numbers
Third number = 150 - 30 - 50
Third number = 70
Answer: The third number is 70
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