NCO- Cyber Olympiad (SOF) Class 10: Questions 176 - 182 of 461
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Question number: 176
» Mental Ability » Basic Geometry
Question
The radii of two spheres are in the ratio 1: 5. Find the ratio of their volumes.
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Question number: 177
» Mental Ability » Basic Algebra
Question
The sum of the squares of two consecutive even integers is 340. Find the integers.
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Question number: 178
» Mental Ability » Basic Arithmetic
Question
30 liters of a mixture contains 20 % alcohol and the rest water. If 6 liters of water be mixed in it, the percentage of alcohol in the new mixture will be
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| Choice (4) | Response | |
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a. | 17% | |
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d. | 15% | |
Question number: 179
» Mental Ability » Number Games » Number Analogies
Question
If all the numbers from 25 to 80 which are divisible by 6 are arranged in descending order, then which number will be at 6th and 2nd places?
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| Choice (4) | Response | |
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a. | 72,48 | |
b. | 60,42 | |
c. | 66,48 | |
d. | 48,66 | |
Question number: 180
» Mental Ability » Basic Algebra
Question
The roots of are
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| Choice (4) | Response | |
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a. | -1,1 and 5 | |
b. | -1 | |
c. | 0 and -1 | |
d. | 1 and 5 | |
Question number: 181
» Mental Ability » Basic Geometry
Question
The angle of elevation of the top of a tower at a distance 680 meters from the base is . The height of the tower is
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| Choice (4) | Response | |
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a. | meters | |
b. | meters | |
c. | meters | |
d. | meters | |
Question number: 182
» Mental Ability » Basic Algebra
Question
x | -2 | 1 | 0 | 3 |
y | -7 | 2 | -1 | 8 |
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