# Mental Ability-Basic Algebra (NCO- Cyber Olympiad (SOF) Class 9): Questions 73 - 76 of 101

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## Question number: 73

» Mental Ability » Basic Algebra

Appeared in Year: 2011

MCQ▾

### Question

Given a circle with center O. A chord AB is drawn and C is its mid-point. Then will be ________

### Choices

Choice (4) Response

a.

b.

More than

c.

Less than

d.

All of the above

## Question number: 74

» Mental Ability » Basic Algebra

Appeared in Year: 2011

MCQ▾

### Question

The dimensions of 3 connected stores are shown in the figure. How many square feet of floor space are used by the 3 stores?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 75

» Mental Ability » Basic Algebra

MCQ▾

### Question

Ms Radhika works at a music store. Last week she sold 6 more than 3 times the number of CDs that she sold this week. Ms. Radhika sold a total of 108 CDs over the 2 weeks. Which system of equations can be used to find I, the number of CDs she sold last week and t the number of CDs she sold this week?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 76

» Mental Ability » Basic Algebra

Appeared in Year: 2011

MCQ▾

### Question

An article was sold for Rs. 144. If the percentage of profit was numerically equal to the cost price, the cost of the article was ________

### Choices

Choice (4) Response

a.

Rs. 100

b.

Rs. 72

c.

Rs. 80

d.

Rs. 90

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