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Quantitative Ability Topics

Postgraduate level — Quantitative Ability

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quiz Questions

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Q31

Find the LCM of 50 and 16.

1 · 2 marks · MCQ

A.

400

B.

66

C.

408

D.

2

Explanation

LCM(50,16) = (50×16)/HCF = 400.

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Q32

Find the HCF (GCD) of 60 and 68.

2 · 2 marks · MCQ

A.

6

B.

4

C.

1020

D.

8

Explanation

HCF(60,68) = 4 using prime factorisation / Euclid's algorithm.

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Q33

Find the LCM of 72 and 94.

3 · 2 marks · MCQ

A.

3384

B.

166

C.

3398

D.

2

Explanation

LCM(72,94) = (72×94)/HCF = 3384.

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Q34

Find the HCF (GCD) of 15 and 114.

4 · 2 marks · MCQ

A.

3

B.

9

C.

570

D.

99

Explanation

HCF(15,114) = 3 using prime factorisation / Euclid's algorithm.

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Q35

Find the LCM of 18 and 59.

5 · 2 marks · MCQ

A.

1

B.

77

C.

1072

D.

1062

Explanation

LCM(18,59) = (18×59)/HCF = 1062.

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Q36

Find the HCF (GCD) of 85 and 48.

1 · 2 marks · MCQ

A.

1

B.

7

C.

37

D.

4080

Explanation

HCF(85,48) = 1 using prime factorisation / Euclid's algorithm.

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Q37

Find the LCM of 106 and 19.

2 · 2 marks · MCQ

A.

125

B.

2029

C.

1

D.

2014

Explanation

LCM(106,19) = (106×19)/HCF = 2014.

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Q38

Find the HCF (GCD) of 65 and 71.

3 · 2 marks · MCQ

A.

1

B.

4

C.

4615

D.

6

Explanation

HCF(65,71) = 1 using prime factorisation / Euclid's algorithm.

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Q39

Find the LCM of 109 and 22.

4 · 2 marks · MCQ

A.

2400

B.

2398

C.

131

D.

1

Explanation

LCM(109,22) = (109×22)/HCF = 2398.

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Q40

Find the HCF (GCD) of 15 and 45.

5 · 2 marks · MCQ

A.

19

B.

45

C.

15

D.

30

Explanation

HCF(15,45) = 15 using prime factorisation / Euclid's algorithm.