MCQ
Sum of $1.8, 16.3$ and $72.985$ is _____.
  • A
    $91.85$
  • B
    $9108.5$
  • $91.085$
  • D
    $9.1085$

Answer

Correct option: C.
$91.085$

For obtaining the sum of decimal numbers with different decimal values we expand the decimal
values of all the numbers with respect to the number with the highest decimal value.
Because the number with the largest decimal places is $72.985$ with $3$ decimal places, we expand all numbers up to $3$ decimal places.$1.800 + 16.300 + 72.985 = 91.085$

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