# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 47 - 55 of 1128

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## Question number: 47

Edit

### Question

MCQ▾

of 49 km = ________ m.

### Choices

Choice (4)Response

a.

700

b.

70

c.

7

d.

7000

## Question number: 48

Mathematics
Edit

### Question

MCQ▾

The present age of A is thrice that of B. 20 years from now, age of A will be times of B. Find the present ages of A and B respectively.

### Choices

Choice (4)Response

a.

40,120

b.

80,60

c.

60,80

d.

120,40

## Question number: 49

Edit

MCQ▾

### Choices

Choice (4)Response

a.

11

b.

6

c.

5

d.

7

## Question number: 50

Mathematics
Edit

### Question

MCQ▾

The average of three numbers is 80. The first is rd of the sum of the other two. The first number is

### Choices

Choice (4)Response

a.

60

b.

80

c.

65

d.

70

## Question number: 51

Edit

### Question

MCQ▾

The middle terms of proportion are called

### Choices

Choice (4)Response

a.

Means

b.

Antecedent

c.

Extremes

d.

Consequent

## Question number: 52

Mathematics
Edit

### Question

MCQ▾

Two sums of money are in the ratio 3: 5. If the second sum is Rs. 80, then first sum is

### Choices

Choice (4)Response

a.

32 Rs.

b.

42 Rs.

c.

54 Rs.

d.

48 Rs.

## Question number: 53

Mathematics
Edit

### Question

MCQ▾

If then in terms of x is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 54

Edit

### Question

MCQ▾

The daily consumption of milk of a family is liters. The quality of milk consumed by the family during the month of November 2005 is

### Choices

Choice (4)Response

a.

170 lit

b.

130 lit

c.

160 lit

d.

lit

## Question number: 55

Edit

### Question

MCQ▾

Expression of 0.25 in terms of vulgar fraction is

### Choices

Choice (4)Response

a.

b.

c.

d.