IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 663 - 669 of 929

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Question number: 663

» Everyday Mathematics

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MCQ▾

Question

If 100 men can do a job in 80 days, in how many days will 120 men do it in ________.

Choices

Choice (4)Response

a.

67 days

b.

65 days

c.

63 days

d.

69 days

Question number: 664

» Introduction to Euclid's Geometry

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MCQ▾

Question

In the figure 3x = 90˚, then ∠ROS is________

Find the value of angle ROS

Find the Value of Angle ROS

Choices

Choice (4)Response

a.

120˚

b.

150˚

c.

130˚

d.

140˚

Question number: 665

» Everyday Mathematics

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MCQ▾

Question

The compound interest on Rs. 80000 at per annum for 9 months, compound quarterly is ________

Choices

Choice (4)Response

a.

Rs. 14610

b.

Rs. 12610

c.

Rs. 15610

d.

Rs. 13610

Question number: 666

» Polynomials

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MCQ▾

Question

If , then =

Choices

Choice (4)Response

a.

2

b.

1

c.

3

d.

0

Question number: 667

» Everyday Mathematics

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MCQ▾

Question

A man rows downstream 30 km and upstream 18 km, taking 5 hours each time. The velocity of current is ________

Choices

Choice (4)Response

a.

1.2 km/hr

b.

6 km/hr

c.

3.6 km/hr

d.

2.4 km/hr

Question number: 668

» Introduction to Euclid's Geometry

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MCQ▾

Question

According to Euclid, a point has________

Choices

Choice (4)Response

a.

Length, breadth and thickness

b.

No Length but breadth and thickness

c.

Length and breadth but no thickness

d.

No length, no breadth and no thickness

Question number: 669

» Linear Equations in Two Variables

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MCQ▾

Question

The number of values of k for which the system of equations , has the solutions?

Choices

Choice (4)Response

a.

b.

c.

d.

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