Mathematics-Factors and Multiples (NSTSE (National Level Science Talent Search Examination) Class 5): Questions 72 - 78 of 84

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Question number: 72

» Mathematics » Factors and Multiples

MCQ▾

Question

Observe the twin primes in the table.

This table shows the twin primes

Find which number present in the prime factorization

(3, 5)

(7, 11)

(11, 17)

(13, 19)

P

Q

R

S

Which of the given twin primes are present in the prime factorization of 2805?

Choices

Choice (4) Response

a.

P and Q

b.

Q and S

c.

P and S

d.

R and S

Question number: 73

» Mathematics » Factors and Multiples

MCQ▾

Question

Find the greatest 3-digit number that is divisible by 5.

Choices

Choice (4) Response

a.

480

b.

315

c.

783

d.

246

Question number: 74

» Mathematics » Factors and Multiples

MCQ▾

Question

Study the following.

This image shows the LCM and HCF of number

This Image Shows the LCM and HCF of Number

Find which digits in the numbers in the hundreds place

Which digit in the number Equation is in the hundreds place?

Choices

Choice (4) Response

a.

5

b.

3

c.

9

d.

0

Question number: 75

» Mathematics » Factors and Multiples

MCQ▾

Question

What is the sum of the first five multiples of 10?

Choices

Choice (4) Response

a.

180

b.

120

c.

100

d.

150

Question number: 76

» Mathematics » Factors and Multiples

MCQ▾

Question

Which of the following are two consecutive prime numbers that differ by 2?

Choices

Choice (4) Response

a.

Composite numbers

b.

Co-primes

c.

Twin primes

d.

All of the above

Question number: 77

» Mathematics » Factors and Multiples

MCQ▾

Question

When a number X is added to 6, the sum is divisible by 8. What could the number X be?

Choices

Choice (4) Response

a.

34

b.

41

c.

39

d.

12

Question number: 78

» Mathematics » Factors and Multiples

MCQ▾

Question

Identify the numbers which have at least 1 factor other than 1 and itself.

Choices

Choice (4) Response

a.

Prime numbers

b.

Co-prime numbers

c.

Twin numbers

d.

Composite numbers

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