IMO- Mathematics Olympiad Class 6: Questions 178 - 184 of 1049
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Question number: 178
Question
When a number is divided by seven, it has a remainder of 2. When it is divided by six, it has remainder of 3. What is the number?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 16 |
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| b. | 44 |
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| c. | 38 |
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| d. | 9 |
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Question number: 179
Question
The co-prime numbers from the following pairs, is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 7 and 63 |
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| b. | 63 and 81 |
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| c. | 35 and 21 |
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| d. | 36 and 25 |
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Question number: 180
Question
The smallest value of ‘a’ in the number 321a8 so that it is divisible by 8 is:
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 |
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| b. | 2 |
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| c. | 4 |
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| d. | 3 |
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Question number: 181
Question
693 is divisible by
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 6 |
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| b. | 9 |
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| c. | 3 & 9 |
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| d. | 3 |
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Question number: 182
Question
Rohan’s monthly salary is Rs. 18000. He spends Rs. 2050 for his home expenses, Rs. 1590 for purchasing clothes, Rs. 870 for purchasing groceries, milk, etc. , Rs. 1900 for purchasing medicine and pays a rent of Rs. 4500 in a particular month. How much does he save in this month?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Rs. 7090 |
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| b. | Rs. 8609 |
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| c. | Rs. 7050 |
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| d. | Rs. 6870 |
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Question number: 183
Question
Prime factorization of 13915 is
Choices
| Choice (4) | Response | |
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| a. |
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| b. |
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| c. |
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| d. |
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Question number: 184
Question
Number of prime and co-prime numbers from 80 to 100 are
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 7 |
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| b. | 3 |
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| c. | 4 |
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| d. | 5 |
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