IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 521 - 530 of 1042

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Question 521

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Question

MCQ▾

For a group of 15 students food lasts for 50 days. For how many days will the same food last for 75 students?

Choices

Choice (4)Response
a.25 days
b.10 days
c.15 days
d.20 days

Question 522

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Question

MCQ▾

The value of is________.

Choices

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

Question 523

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Question

MCQ▾

If , then is________.

Choices

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

Question 524

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Question

MCQ▾

The standard form of 12650000 is________.

Choices

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

Question 525

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Question

MCQ▾

If and, then the value of is ________.

Choices

Choice (4)Response
a.6
b.8
c.9
d.10

Question 526

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Question

MCQ▾

The weight of a 12 m long iron rod is 20.5 kg. The weight of 5 m long of such rod will be________.

Choices

Choice (4)Response
a.8.54 kg
b.8 kg
c.9.5 kg
d.9 kg

Question 527

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Question

MCQ▾

The weight of a 15 m long iron rod is 25 kg. The weight of 10 m long of such rod will be________.

Choices

Choice (4)Response
a.18.54 kg
b.18 kg
c.16.6 kg
d.16 kg

Question 528

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Question

MCQ▾

A can do a work in 8 days. If B is 60 % more 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 529

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Question

MCQ▾

The value of is________.

Choices

Choice (4)Response
a.
b.
c.
d.49

Question 530

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Question

MCQ▾

If and, then is equal to________.

Choices

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