Common Multiples of 3 Numbers

Q.

Which of the following is a common multiple of 3 and 5?

1. 12
2. 10
3. 15
4. 21

Q. Which of the following is a common multiple of 2, 3, and 5?

1. 15
2. 30
3. 18
4. 10

Q. What is the smallest common multiple of 3, 4 and 5?

1. 30
2. 45
3. 55
4. 60

Q. Choose the option that has common multiples of 5, 6, and 10.

1. 30, 60
2. 30, 40
3. 30, 45
4. 20, 30

Q. The first common multiple of 2, 5, and 4 is .

1. 20
2. 24
3. 30

Q. 8 is a common multiple of 16 and 24.

1. True
2. False

Q. 45 is a multiple of 15.

1. True
2. False

Q. Which of the following is a common multiple of 7 and 3?

1. 14
2. 15
3. 21
4. 24

Q.

A safety pin manufacturing company has 5 production units in different cities of India. The given table shows its production at different units for a particular week.

$\begin{array}{cc}City& Production\\ Bangaluru& 32,95,73,000\\ Kochi& 57,66,21,986\\ Mumbai& 72,51,83,441\\ Hydrabad& 83,86,91,541\\ Chennai& 20,99,89,885\end{array}$

Using the digits of production units in Mumbai, form the smallest number.

Q. 45 is a multiple of 15.

1. True
2. False

Q. ____ is a common multiple of 2 and 3.

1. 1
2. 2
3. 3
4. 6

Q. ____ is a common multiple of 2 and 3.

1. 1
2. 2
3. 3
4. 6

Q. Which of the following is a common multiple of 2, 3, and 5?

1. 10
2. 18
3. 30
4. 15

Q. Which of the following is a common multiple of 5, 6 and 7?

1. 230
2. 210
3. 140
4. 310