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Quantitative Ability Topics

Postgraduate level — Quantitative Ability

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quiz Questions

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Q1

Find the LCM of 77 and 74.

1 · 2 marks · MCQ

A.

5703

B.

1

C.

151

D.

5698

Explanation

LCM(77,74) = (77×74)/HCF = 5698.

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Q2

Find the HCF (GCD) of 44 and 75.

2 · 2 marks · MCQ

A.

31

B.

3300

C.

2

D.

1

Explanation

HCF(44,75) = 1 using prime factorisation / Euclid's algorithm.

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Q3

Find the LCM of 32 and 78.

3 · 2 marks · MCQ

A.

1254

B.

1248

C.

2

D.

110

Explanation

LCM(32,78) = (32×78)/HCF = 1248.

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Q4

Find the HCF (GCD) of 68 and 33.

4 · 2 marks · MCQ

A.

35

B.

1

C.

2244

D.

8

Explanation

HCF(68,33) = 1 using prime factorisation / Euclid's algorithm.

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Q5

Find the LCM of 100 and 97.

5 · 2 marks · MCQ

A.

197

B.

9700

C.

1

D.

9710

Explanation

LCM(100,97) = (100×97)/HCF = 9700.

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Q6

Find the HCF (GCD) of 66 and 45.

1 · 2 marks · MCQ

A.

21

B.

990

C.

3

D.

9

Explanation

HCF(66,45) = 3 using prime factorisation / Euclid's algorithm.

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Q7

Find the LCM of 65 and 117.

2 · 2 marks · MCQ

A.

182

B.

13

C.

599

D.

585

Explanation

LCM(65,117) = (65×117)/HCF = 585.

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Q8

Find the HCF (GCD) of 25 and 93.

3 · 2 marks · MCQ

A.

2325

B.

68

C.

2

D.

1

Explanation

HCF(25,93) = 1 using prime factorisation / Euclid's algorithm.

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Q9

Find the LCM of 61 and 32.

4 · 2 marks · MCQ

A.

1

B.

1952

C.

1954

D.

93

Explanation

LCM(61,32) = (61×32)/HCF = 1952.

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Q10

Find the HCF (GCD) of 60 and 115.

5 · 2 marks · MCQ

A.

5

B.

12

C.

1380

D.

55

Explanation

HCF(60,115) = 5 using prime factorisation / Euclid's algorithm.