Question

Q28
The sum of three consecutive multiples
of 3 is 72. What is the second largest
number?
27​

Answer 1

Answer:

let the three consecutive numbers of multiple of 3 be ( x) , (x + 3) , (x +3+3)

given number is multiple of 3 so the difference in each number is 3

so equation is

x + x+ 3 + x + 6 = 72

3x + 9 =72

3x = 72-9

3x= 63

x= 21

second number = 21+3 =24

third number = 21+3+3= 27

then the second largest number will be 24

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