IMO- Mathematics Olympiad Class 8: Questions 181 - 188 of 1029
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Question number: 181
Question
A number is multiplied by itself and then 10 is subtracted from the product. If the final result is 590, then find the original number.
Choices
| Choice (4) | Response | |
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| a. | 60 |
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| b. | 30 |
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| c. | 50 |
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| d. | 36 |
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Question number: 182
Question
Three numbers are in the ratio of 4: 3: 2. The sum of their cubes is 21384. The numbers are________.
Choices
| Choice (4) | Response | |
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| b. | 15: 30: 45 |
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| d. | 6: 12: 18 |
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Question number: 183
Question
If , then
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| d. | Question does not provide sufficient data or is vague |
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Question number: 184
Question
The value of is ________.
Choices
| Choice (4) | Response | |
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| a. | 8.5 |
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| b. | 4.00 |
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| c. | 2.5 |
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| d. | 7.5 |
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Question number: 185
Question
If , then is equal to________.
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Question number: 186
Question
If , then the value of is________.
Choices
| Choice (4) | Response | |
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| a. | 30.2 |
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| b. | 22.7 |
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| c. | 11.1 |
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| d. | 24.7 |
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Question number: 187
Question
The cube of a number is four times of then find where
Choices
| Choice (4) | Response | |
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| a. | 4 |
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| b. | 2 |
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| c. | 1 |
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| d. | 0 |
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Question number: 188
Question
=
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