# NCO- Cyber Olympiad (SOF) Class 7: Questions 111 - 115 of 416

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## Question number: 111

MCQ▾

### Question

A man has Rs. 380 in the denominations of 1-rupee notes, 2-rupee notes, 5-rupee notes and 10-rupee notes, 20-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has?

### Choices

Choice (4) Response

a.

75

b.

48

c.

50

d.

66

## Question number: 112

MCQ▾

### Question

90, 180, 360, ________

### Choices

Choice (4) Response

a.

150

b.

720

c.

175

d.

252

## Question number: 113

MCQ▾

### Question

If and are any two rational numbers then we define:

Based on the statement given above solve the following problem: Subtract from.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 114

MCQ▾

### Question

If and be any two rational numbers then we define:

Thus, subtracting a rational number means adding its additive inverse. Based on the statement given above solve the following Problem: Subtract from.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 115

MCQ▾

### Question

A cistern can be filled by two tapes A and B in 12 hours and 16 hours respectively. The full cistern can be emptied by a third tap C in 8 hours. If all the taps were turned on at the same time, in how much time will the empty cistern be filled up completely?

### Choices

Choice (4) Response

a.

36 hours

b.

40 hours

c.

24 hours

d.

48 hours

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