the average of 4 number is 24 three of its number are 30 ,40 and 20 find the fourth number
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the average of 4 number is 24 three of its number are 30 ,40 and 20 find the fourth number
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Answer:
fourth number is 6
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Step-by-step explanation:
30+ 40 + 20+x / 4 = 24
90+x = 24 ×4
90 + x = 96
x = 6
Answer: The fourth number is 6
Step-by-step explanation:
Formula for finding an average = Sum of the numbers
________________
Number of numbers
Let the fourth number be x.
Then,
= 24
30 + 40 + 20 + x = 24 x 4 = 96
90 + x = 96
x = 6
Hope this helps
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