Playing with Numbers Test

Result

Playing with Numbers Test - 35

Score
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Weekly Quiz Competition

Question 1
1 / -0

Write all the factors of 40 in blue circle and all the factors of 60 in green circle.
1) What are the factors written in common part of both the circles?
2) Which is biggest common factor of 40 and 60?

A
1) 2, 4, 5, 10, 20, 40, 60 and 2) 60

B
1) 2, 4, 5, 10, 20 and 2) 20

C
1) 2, 4, 5, 8, 10, 15, 20 and 2) 20

D
1) 2, 3, 4, 5, 10, 20, 30, 40 and 2) 40

Solution
Question 2
1 / -0

HCF of $$95$$ and $$152$$ is:

A
$$1$$

B
$$19$$

C
$$57$$

D
$$38$$

Solution

$$95 = 5 \times 19$$
and $$152 = 2^{3} \times 19$$
H.C.F $$ = 19$$
Question 3
1 / -0

Using multiplication chart, find all the factors of $$36$$.

A
1,2,3,5,7,9,12,15,18,36

B
1,2,3,4,6,9,12,18,36

C
1,4,7,12,18,36

D
1,6,9,18,36

Solution

Factors of 36 are 1,2,3,4,6,9,12,18,36
Question 4
1 / -0

Write all the factors of 5, 8 and 10. Find out all the common factors of these numbers. Which is highest common factor?

A
5

B
8

C
10

D
1

Solution
Question 5
1 / -0

From the multiplication chart, find all the factors of 20

A
1, 2, 3, 4, 6, 8, 10, 20

B
1, 2, 4, 5, 10, 20

C
1, 4, 10, 20

D
1, 2, 8, 20

Solution
Question 6
1 / -0

Choose the largest three digit prime number.

A
$$987$$

B
$$993$$

C
$$997$$

D
$$999$$

Solution
Question 7
1 / -0

If Meena is having 28 bangles and she wants to make groups of bangles such that no any bangle is left, then how many bangles can she put in each group? Write all the possibilities.

A
1, 2, 4, 7, 14, 28

B
1, 3, 7, 10, 14, 28

C
1, 5, 12, 16, 28

D
1, 4, 8, 14, 28

Solution
Question 8
1 / -0

Identify prime numbers from the followings:
$$3, 6, 7, 9, 13, 24, 29, 31, 49, 53$$

A
$$3, 7, 13, 29, 53$$

B
$$3, 7, 13, 29, 31, 53$$

C
$$3, 7, 13, 29, 53$$

D
$$3, 9, 13, 29, 31, 53$$

Solution
Question 9
1 / -0

What is the largest $$4-$$digit prime number?

A
$$9973$$

B
$$9987$$

C
$$9991$$

D
$$9997$$

Solution
Question 10
1 / -0

How many prime numbers are there?
$$7, 9, 11, 16, 29, 34, 52, 53, 61, 71, 77, 87, 89, 92$$

A
$$6$$

B
$$7$$

C
$$8$$

D
$$9$$

Solution