NCO- Cyber Olympiad (SOF) Class 8: Questions 135 - 138 of 510

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Question 135

Question MCQ▾

Two chords AB and CD of a circle cut each other when produced outside the circle at P. If AD and BC are joined, and , find .

A Circle Having Two Chords AB and CD

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 136

Question MCQ▾

Statement 1: The cube of a number is that number raised to the power of 3.

Statement 2: The natural number n is a perfect cube if for some natural number m.

Statement 3: The cube of an even natural number is even.

Statement 4: The cube of an odd natural number is odd.

State whether the above statements are correct or incorrect?

Choices

Choice (4)Response

a.

Statements 1,2 and 3 are incorrect

b.

Only statements 1 and 3 are correct

c.

Statements 2,3 and 4 are incorrect

d.

All statements are correct

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Question 137

Question MCQ▾

The monthly salaries of A, B, C are in the proportion 5: 3: 8. If C՚s monthly salary is ₹ 800 more than that of A, then B՚s annual salary is

Choices

Choice (4)Response

a.

₹ 12000

b.

₹ 4000

c.

₹ 10200

d.

₹ 9600

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Question 138

Question MCQ▾

A man goes to a place at the rate of 8 kmph. He comes back on a bicycle at 12 kmph. His average speed for the entire journey is:

Choices

Choice (4)Response

a.

5.4 kmph

b.

10 kmph

c.

4.8 kmph

d.

5 kmph

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