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Find all the multiples of 9 up to 100.

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9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99

54, 63, 72, 81, 90, 99

9, 15, 27, 36, 45

None of these

answer is A.

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Detailed Solution

Concept- Multiplication table of 9 will help us solve this question. We will multiply every natural no. with 9 unless we get over the digit 100. That will help us solve this question.
9 multiplied by 1 gives,

9 \times 1 = 9

.
9 multiplied by 2 gives,

9 \times 2 = 18

.
9 multiplied by 3 gives,

9 \times 3 = 27

.
9 multiplied by 4 gives,

9 \times 4 = 36

.
9 multiplied by 5 gives,

9 \times 5 = 45

.
9 multiplied by 6 gives,

9 \times 6 = 54

.
9 multiplied by 7 gives,

9 \times 7 = 63

.
9 multiplied by 8 gives,

9 \times 8 = 72

.
9 multiplied by 9 gives,

9 \times 9 = 81

.
9 multiplied by 10 gives,

9 \times 10 = 90

.
9 multiplied by 11 gives,

9 \times 11 = 99

.
9 multiplied by 12 gives,

9 \times 12 = 108

.
Now we can see that

9 \times 12

.
gives 108 which is greater than 100.
Hence, the correct option is 1.

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