# Mental Ability (NCO- Cyber Olympiad (SOF) Class 10): Questions 1 - 6 of 198

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## Question number: 1

» Mental Ability » Basic Geometry

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MCQ▾

### Question

The Volume of a solid metallic sphere is 2512 . It is melted and recast into solid right circular cones of radius 5 cm and height 16 cm. Calculate the number of cones recast.

### Choices

Choice (4)Response

a.

9

b.

6

c.

8

d.

7

## Question number: 2

» Mental Ability » Basic Algebra

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MCQ▾

### Question

If , which expression is equivalent to ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 3

» Mental Ability » Days and Dates

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MCQ▾

### Question

If Tuesday falls on 25th December 1990, what day will be on 25th December 1992?

### Choices

Choice (4)Response

a.

Monday

b.

Sunday

c.

Tuesday

d.

Friday

## Question number: 4

» Mental Ability » Basic Statistics

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MCQ▾

### Question

Find the mean marks of students from the following cumulative frequency table:

 Marks Number of Students 0 and above10 and above20 and above30 and above40 and above50 and above60 and above70 and above80 and above90 and above100 and above 80767165585041312080

### Choices

Choice (4)Response

a.

78.9

b.

54.6

c.

62.5

d.

57.5

## Question number: 5

» Mental Ability » Basic Algebra

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MCQ▾

### Question

Indicate in which one of the following equations x is neither directly nor inversely proportional to y.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 6

» Mental Ability » Basic Geometry

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MCQ▾

### Question

In the figure drawn below, and are parallel and . What is ?

### Choices

Choice (4)Response

a.

b.

c.

d.

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