Mental Ability (NCO- Cyber Olympiad Class 6): Questions 1 - 8 of 394
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Question number: 1
» Mental Ability » Basic Arithmetic
Question
What is the least common factor (LCM) of 8 and 10?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 40 |
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| b. | 24 |
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| c. | 80 |
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| d. | 16 |
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Question number: 2
» Mental Ability » Basic Arithmetic
Question
What is the least common factor (LCM) of 14 and 21?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 45 |
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| b. | 21 |
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| c. | 70 |
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| d. | 42 |
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Question number: 3
» Mental Ability » Basic Arithmetic
Question
What is the least common factor (LCM) of 45 and 35?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 90 |
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| b. | 54 |
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| c. | 30 |
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| d. | 45 |
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Question number: 4
» Mental Ability » Number Games » Number Series
Question
In the given series find the number in place of? .
23, 19, ? , 12, 9
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 15 |
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| b. | 17 |
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| c. | 16 |
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| d. | 14 |
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Question number: 5
» Mental Ability » Basic Arithmetic
Question
John charged Rs. 15.75 for each birdhouse he built. If the material costs Rs. 10.25 Per house, how much profit could he earn after selling five houses?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Rs. 78.75 |
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| b. | Rs. 27.50 |
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| c. | Rs. 51.25 |
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| d. | Rs. 25.50 |
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Question number: 6
» Mental Ability » Basic Arithmetic
Question
The number that should replace the triangle so that the following forms a proportion is________.
12, 21, 8, ∆
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 16 |
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| b. | 14 |
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| c. | 18 |
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| d. | 20 |
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Question number: 7
» Mental Ability » Basic Arithmetic
Question
A number is divisible by 5 if, ________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | The last digit is 5 or 0 |
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| b. | The sum of the digits is divisible by 5 |
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| c. | The sum of the digits is divisible by 10 |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 8
» Mental Ability » Basic Geometry
Question
Side BC of an ∆ ABC has been produced to point D. If ACD = and A = then B = ________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
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| b. |
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| c. |
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