IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 504 - 514 of 1042

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Question 504

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Question

MCQ▾

Number of prime factors in is

Choices

Choice (4)Response
a.4
b.2
c.6
d.3

Question 505

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Question

MCQ▾

If, then the value of is________.

Choices

Choice (4)Response
a.3
b.1
c.2
d.4

Question 506

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Question

MCQ▾

A can do a work in 3 days. If B is 25 % less efficient than A, then in how many days can B do the same work?

Choices

Choice (4)Response
a.3.5
b.4
c.5
d.3

Question 507

Edit

Question

MCQ▾

The ratio of boys and girls in a school of 910 students is. How many girls should be admitted to make ratio?

Choices

Choice (4)Response
a.260
b.240
c.130
d.210

Question 508

Edit

Question

MCQ▾

If , then is________.

Choices

Choice (4)Response
a.
b.
c.
d.

Question 509

Edit

Question

MCQ▾

The value of when is________.

Choices

Choice (4)Response
a.4
b.5
c.2
d.1

Question 510

Edit

Question

MCQ▾

The standard form of 0.003445 is________.

Choices

Choice (4)Response
a.
b.
c.
d.

Question 511

Edit

Question

MCQ▾

If and, then the value of is ________.

Choices

Choice (4)Response
a.75
b.15
c.85
d.65

Question 512

Edit

Question

MCQ▾

The value of is ________.

Choices

Choice (4)Response
a.8044
b.1024
c.4450
d.2044

Question 513

Edit

Question

MCQ▾

The value of

Choices

Choice (4)Response
a.17
b.11
c.15
d.16

Question 514

Edit

Question

MCQ▾

Two numbers are in the ratio 5: 7. If each number is increased by 14, the ratio becomes 7: 9. The numbers are________.

Choices

Choice (4)Response
a.35,25
b.25,35
c.35,49
d.35,47