The sum of three consecutive multiples of 3 is 72. What are the multiples
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The sum of three consecutive multiples of 3 is 72. What are the multiples
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Answer:
let's take 3x, 3x + 3 , 3x + 6
3x + 3x + 3 +3x +6= 72
9x + 9 = 72
9x = 72-9
x = 63 /9
x= 7
first no= 3x = 7*3= 21
second no = 3x + 3 = 21+ 3 = 24
third no = 3x + 6 = 21 + 6 = 27
Explanation:
Let the numbers be 3x, 3x + 3 and 3x + 6.
Then,
3x + (3x + 3) + (3x + 6) = 72
9x = 63
x = 7
Largest number = 3x + 6 = 27.
=> Second largest number = 27 - 3 = 240