# Mental Ability (NCO- Cyber Olympiad Class 6): Questions 143 - 146 of 394

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## Question number: 143

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

By how much must 27 be decreased so that it bears same ratio to 49 as 12 to 28?

### Choices

Choice (4) Response

a.

3

b.

2

c.

6

d.

7

## Question number: 144

» Mental Ability » Basic Geometry

MCQ▾

### Question

In parallelogram ABCD, E and F are the midpoints of AB and CD respectively. Which of the following is not true?

### Choices

Choice (4) Response

a.

b.

ED is not parallel to BF

c.

AF trisects BD

d.

CE trisects BD

## Question number: 145

» Mental Ability » Basic Geometry

MCQ▾

is equal to,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 146

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

If stands for ‘division’, stands for ‘equal to’, stands for ‘addition’, stands for ‘greater than’, stands for ‘less than’, stands for ‘multiplication’ and stands for ‘subtraction’, then which of the following alternative is correct?

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page