Playing with Numbers Test

Result

Playing with Numbers Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

By which of the following number 225 is divisible? 2, 3, 4, and 6

A
3

B
2

C
4

D
6

Solution

Explanation:

It's digit sum=9

So it is divisible by 3
Question 2
1 / -0

The number 477 is divisible by each of the following numbers EXCEPT: 3, 6, 9

A
None of these

B
6

C
3

D
9

Solution

Explanation:

4 + 7 + 7 = 18. Divisible by 9 and 3. Number ending in 7 cannot be divisible by 6.
Question 3
1 / -0

If a number is divisible by 9, then it is also divisible by which number?

A
6

B
5

C
3

D
2

Solution

Explanation:

3 is a factor of 9.
Question 4
1 / -0

By which of the following number 168 is divisible? 2, 4, 6, and 10

A
6

B
2, 4, 6, 10

C
10

D
2, 4, 6

Solution

Explanation:

Divisible by 2 because it is even. Divisible by 4 as 68 is divisible by 4. Divisible by 6 as divisible by 2 and 3 both. Not divisible by 10 as no zero in units place.