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Elementary Mathematics

Elementary Mathematics Topics

School level (Class 6–12) — Elementary Mathematics

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quiz Questions

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Q31

Find the LCM of 35 and 100.

1 · 2 marks · MCQ

A.

700

B.

5

C.

713

D.

135

Explanation

LCM(35,100) = (35×100)/HCF = 700.

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Q32

Find the HCF (GCD) of 67 and 98.

2 · 2 marks · MCQ

A.

7

B.

31

C.

6566

D.

1

Explanation

HCF(67,98) = 1 using prime factorisation / Euclid's algorithm.

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Q33

Find the LCM of 111 and 114.

3 · 2 marks · MCQ

A.

4230

B.

3

C.

4218

D.

225

Explanation

LCM(111,114) = (111×114)/HCF = 4218.

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Q34

Find the HCF (GCD) of 88 and 14.

4 · 2 marks · MCQ

A.

10

B.

74

C.

616

D.

2

Explanation

HCF(88,14) = 2 using prime factorisation / Euclid's algorithm.

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Q35

Find the LCM of 45 and 104.

5 · 2 marks · MCQ

A.

4680

B.

149

C.

4688

D.

1

Explanation

LCM(45,104) = (45×104)/HCF = 4680.

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Q36

Find the HCF (GCD) of 38 and 96.

1 · 2 marks · MCQ

A.

7

B.

58

C.

1824

D.

2

Explanation

HCF(38,96) = 2 using prime factorisation / Euclid's algorithm.

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Q37

Find the LCM of 36 and 84.

2 · 2 marks · MCQ

A.

12

B.

120

C.

252

D.

264

Explanation

LCM(36,84) = (36×84)/HCF = 252.

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Q38

Find the HCF (GCD) of 41 and 24.

3 · 2 marks · MCQ

A.

1

B.

17

C.

984

D.

6

Explanation

HCF(41,24) = 1 using prime factorisation / Euclid's algorithm.

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Q39

Find the LCM of 47 and 24.

4 · 2 marks · MCQ

A.

71

B.

1140

C.

1

D.

1128

Explanation

LCM(47,24) = (47×24)/HCF = 1128.

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Q40

Find the HCF (GCD) of 91 and 65.

5 · 2 marks · MCQ

A.

14

B.

26

C.

13

D.

455

Explanation

HCF(91,65) = 13 using prime factorisation / Euclid's algorithm.