IMO- Mathematics Olympiad Class 7: Questions 279 - 282 of 965

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Question number: 279

» Simple Equations

MCQ▾

Question

Rahul and Chirag had 5184 phone cards. Rahul had seven times as many phone cards as Chirag. How many phone cards did Rahul have?

Choices

Choice (4) Response
a.

269

b.

858

c.

458

d.

648

Question number: 280

» Practical Geometry - Lines and Angles

MCQ▾

Question

What is the angle between the hands of clock at 4 o’clock?

Choices

Choice (4) Response
a.

110°

b.

120°

c.

130°

d.

150°

Question number: 281

» Practical Geometry - Lines and Angles

MCQ▾

Question

In the figure, AB is parallel to CF. DE is a straight line. Find ECF .

Image of straight line DE and AB is parallel to CF

Image of Straight Line DE and AB Is Parallel to CF

Showing image of straight line DE and AB is parallel to CF

Choices

Choice (4) Response
a.

110°

b.

115°

c.

108°

d.

96°

Question number: 282

» Algebraic Expressions

MCQ▾

Question

When a=22014 and b=22015 , then which is true?

Choices

Choice (4) Response
a.

{(a+b)3+(ab)2ba(a+b)1b+a1a+b}÷{(a+b)3+(ba)3(a+b)2(ab)2} is divisible by 3

b.

{(a+b)2+(ab)2ba(a+b)1ba1a+b}÷{(a+b)3+(ba)3(a+b)2(ab)2} is divisible by 3

c.

{(a+b)2+(ab)3ba(a+b)1ba1a+b}÷{(a+b)3+(ba)3(a+b)2(ab)2} is divisible by 3

d.

{(a+b)2+(a+b)2ba(a+b)1b+a1a+b}÷{(a+b)3+(ba)3(a+b)2+(ab)2} is divisible by 3

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