Question

How many multiples of 9 are there lying between 55 and 100?

• A. 5
• B. 6
• C. 7
• D. 4

Answer 1

The correct option is A 5

First, we write the multiples of 9 between 54 and 108.
I.e. $9\times 6=54$,
$9\times 7=63$,
$9\times 8=72$,
$9\times 9=81$,
$9\times 10=90$,
$9\times 11=99$,
$9\times 12=108$,
Now the numbers lying between 55 and 100 are 63, 72, 81, 90 and 99 respectively.
So, the number of multiples of 9 lying between 55 and 100 will be = 5.