Mathematics-Playing With Numbers (NSTSE (National Science Talent Search Exam- Unified Council) Class 6): Questions 60 - 68 of 83

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Question number: 60

» Mathematics » Playing With Numbers

MCQ▾

Question

The least number of 5 digits which is exactly divisible by 15 is

Choices

Choice (4) Response

a.

15679

b.

15000

c.

15355

d.

15333

Question number: 61

» Mathematics » Playing With Numbers

MCQ▾

Question

Four bells ring at intervals of 4,5, 6,7 and 8 seconds respectively. All the bells ring together after ________ seconds.

Choices

Choice (4) Response

a.

804

b.

560

c.

800

d.

840

Question number: 62

» Mathematics » Playing With Numbers

MCQ▾

Question

Write the least 2-digit number that has 2,4, 8 and 16 as factors?

Choices

Choice (4) Response

a.

40

b.

36

c.

32

d.

10

Question number: 63

» Mathematics » Playing With Numbers

MCQ▾

Question

What least value should be given to * so that the number 304 * 10 is divisible by 15?

Choices

Choice (4) Response

a.

3

b.

5

c.

9

d.

7

Question number: 64

» Mathematics » Playing With Numbers

MCQ▾

Question

Successor of every odd number is

Choices

Choice (4) Response

a.

Even

b.

Prime

c.

Odd

d.

Question does not provide sufficient data or is vague

Question number: 65

» Mathematics » Playing With Numbers

MCQ▾

Question

The HCF and LCM of two numbers is 16 and 182 respectively. If one of the numbers is 32, the other one is

Choices

Choice (4) Response

a.

83

b.

93

c.

45

d.

91

Question number: 66

» Mathematics » Playing With Numbers

MCQ▾

Question

Which of the following pair are co-prime numbers?

Choices

Choice (4) Response

a.

16 & 24

b.

12 & 21

c.

6 & 25

d.

Question does not provide sufficient data or is vague

Question number: 67

» Mathematics » Playing With Numbers

MCQ▾

Question

The least number which when divided by 16,18,24 leaves in each case a remainder of 5 is

Choices

Choice (4) Response

a.

148

b.

144

c.

140

d.

149

Question number: 68

» Mathematics » Playing With Numbers

MCQ▾

Question

The greatest number that will divide 162,122 and 142 leaving a remainder of 2 in each case is

Choices

Choice (4) Response

a.

22

b.

120

c.

20

d.

30

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