Rainbow 🌈 Mental Exercise, daily activity ( divisible by 5,10 and 15)

Rainbow 🌈 Mental Exercise, daily activity

Divisibility by 5: A number is divisible by 5 if it ends in 0 or 5.

*Divisibility by 10: A number is divisible by 10 if it ends in 0.

* Divisibility by 15: A number is divisible by 15 if it is divisible by both 3 and 5.

1.    Which of the following numbers is divisible by both 5 and 10?:

 A) 25
 B)  35
 C)  30
 D) 45

ANSWER= (C) 30

 

2. Which of these numbers is divisible by 15?

 A) 25
 B) 33
 C) 43
 D) 45

ANSWER= (D) 45

 

3.  What is the smallest number divisible by both 10 and 15?

 A) 11
 B) 12
 C) 20
 D) 30

ANSWER= (D)  30

 

4.     Which of the following is NOT divisible by 5?

 A) 12
 B) 10
 C) 15
 D)  20

ANSWER= (A) 12

 

5. What is the smallest number divisible by 5, 10, and 15?

 A) 12
 B)  13
 C) 15
 D) 30

ANSWER= (D) 30

 

6.  If a number is divisible by 10, which of the following must also be true?:

 A) It is divisible by 3 
 B) It is divisible by 4
 C) It is divisible by 6
 D) It is divisible by 5

ANSWER= (D) It is divisible by 5

 

7. What is the largest number less than 100 that is divisible by both 10 and 15?

 A) 70
 B) 80
 C) 100
 D) 90 

ANSWER= (D) 90