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objective Ques (13 results)
1)

The prime factors of 196 are

Class 10 Maths
A)

\(2^2 \times 7^2\)

B)

\(2^2 \times 7^3\)

C)

\(2^2 \times 7\)

D)

\(2 \times 7^2\)

E)

\(2 \times 7\)

2)

 

The decimal expansion of \(\frac{{987}}{{10500}}\)will terminate after:

Class 10 Maths
A)

3 decimal places

B)

2 decimal places

C)

1 decimal places

D)

None of these

3)

For every positive integer n,\(​​​​​​n^2\) - n​ is divisible by

Class 10 Maths
A)

8

B)

6

C)

4

D)

2

4)

The HCF of two consecutive numbers is

Class 10 Maths
A)

0

B)

1

C)

2

D)

3

E)

4

5)

A number when divided by 143 leaves 31 as remainder. What will be the remainder when the same number is divided by 13?

Class 10 Maths
A)

1

B)

2

C)

3

D)

4

E)

5

6)

120 can be expressed as a product of its prime factors as:

Class 10 Maths
A)

\(5 × 8 × 3\)

B)

\(5 × 2^3 × 3^3\)

C)

\(5 × 2^3 × 3\)

D)

\(5 × 2 × 3\)

E)

\(5^2 × 2^3 × 3\)

7)

 

The product of two numbers is 1600 and their HCF is 5. The LCM of the numbers is

Class 10 Maths
A)

230

B)

120

C)

320

D)

3200

E)

450

8)

By Euclid’s division lemma x = qy + r, x > y the value of q and r for x = 27 and y = 5 are:

Class 10 Maths
A)

q = 5, r = 2

B)

q = 6, r = 3​​​​

C)

q = 5, r = 3

D)

cannot be determined

9)

The decimal expansion of \(23 \over 2^5×5^2 \) will terminate after how many places of decimal?

Class 10 Maths
A)

6

B)

5

C)

4

D)

3

E)

2

10)

HCF of 144 and 198 is:

Class 10 Maths
A)

16

B)

17

C)

18

D)

19

E)

20

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