The sum of three consecutive multiples of 9 is 81. The smallest number – InterviewSolution

1.

The sum of three consecutive multiples of 9 is 81. The smallest number is __________.

Answer»

LET the no.be X, so that

$\huge \mathfrak {x + x + 3 + x + 6 = 81}$

$\huge \mathfrak {or, 3x + 9 = 81}$

$\huge \mathfrak {or, 3x = 81-9}$

$\huge \mathfrak {or, x = 72/3 = 24}$

The SMALLEST no. is 24.

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