IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 182 - 191 of 1042

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Question 182

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Question

MCQ▾

Three numbers are in the ratio of 4: 3: 2. The sum of their cubes is 21384. The numbers are________.

Choices

Choice (4)Response
a.
b.6: 12: 18
c.15: 30: 45
d.

Question 183

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Question

MCQ▾

If, then

Choices

Choice (4)Response
a.
b.
c.
d.None of the above

Question 184

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Question

MCQ▾

The value of is ________.

Choices

Choice (4)Response
a.4.00
b.2.5
c.7.5
d.8.5

Question 185

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Question

MCQ▾

If , then is equal to________.

Choices

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

Question 186

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Question

MCQ▾

If, then the value of is________.

Choices

Choice (4)Response
a.11.1
b.24.7
c.22.7
d.30.2

Question 187

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Question

MCQ▾

The cube of a number is four times of then find where

Choices

Choice (4)Response
a.1
b.0
c.2
d.4

Question 188

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Question

MCQ▾

=

Choices

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

Question 189

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Statement

True-False▾

The sum of the cubes of first n natural numbers is equal to the square of their sum. This statement is true or not?

Question 190

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Question

MCQ▾

The cube root of is________.

Choices

Choice (4)Response
a.64
b.4
c.16
d.8

Question 191

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Question

MCQ▾

In the five digit number 13ab4, a is the greatest single digit perfect cube and a is greater four times of b. then find the sum of the number and its cube root is________.

Choices

Choice (4)Response
a.13848
b.13820
c.13825
d.13824