Math Test-least Common Multiple

1) 8 and 9

72

40

45

70

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Explanation

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2) What is 3 and 4 and 9

30

40

90

36

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Explanation

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3) 5 and12

30

40

60

120

In the given sequence, the numbers are multiplied by 2 each time. Starting with 5, the next number is obtained by multiplying 5 by 2, resulting in 10. The number after 10 is obtained by multiplying 10 by 2, resulting in 20. Following the same pattern, the number after 20 is 40. Therefore, the missing number is 40.

Explanation

In the given sequence, the numbers are multiplied by 2 each time. Starting with 5, the next number is obtained by multiplying 5 by 2, resulting in 10. The number after 10 is obtained by multiplying 10 by 2, resulting in 20. Following the same pattern, the number after 20 is 40. Therefore, the missing number is 40.

4) What is 5 and 15

30

15

20

45

The correct answer is 15 because when you add 5 and 15 together, you get a sum of 20. The other options, 30, 20, and 45, do not result from adding 5 and 15.

Explanation

The correct answer is 15 because when you add 5 and 15 together, you get a sum of 20. The other options, 30, 20, and 45, do not result from adding 5 and 15.

5) What is the product of 6 and 10?

60

35

30

65

The product of 6 and 10 is 60.

Explanation

The product of 6 and 10 is 60.