# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 531 - 537 of 1128

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## Question 531

Mathematics
Edit

### Question

MCQ▾

The identity element w. r. t addition in integers is ________.

### Choices

Choice (4)Response

a.

-1

b.

1

c.

0

d.

All of the above

## Question 532

Edit

### Question

MCQ▾

Of a certain sum, is invested at 5%, is invested at 5 % and the rest at 10%. If the SI for 2 years from all these investments amounts to Rs. 1400. Then the original sum was

### Choices

Choice (4)Response

a.

20,000 Rs.

b.

10,000 Rs.

c.

12,000 Rs.

d.

15,000 Rs.

## Question 533

Edit

### Question

MCQ▾

The top of a broken tree touches the ground at a distance of 12 m from its base. If the tree is broken at a height of 5 m from the ground, then the actual height of the tree is

### Choices

Choice (4)Response

a.

18 m

b.

13 m

c.

17 m

d.

24 m

## Question 534

Edit

### Question

MCQ▾

A sum of Rs. 550 amounts to Rs. 595 in 10 years. In what time will the Sum of Rs. 660 amounts to Rs. 960 at the same rate?

### Choices

Choice (4)Response

a.

60 years

b.

years

c.

years

d.

years

## Question 535

Edit

MCQ▾

________

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question 536

Edit

### Question

MCQ▾

Which of the following number is in the scientific notation?

### Choices

Choice (4)Response

a.

m

b.

km

c.

km

d.

km

## Question 537

Edit

### Question

MCQ▾

What is the sum of the shaded parts?

### Choices

Choice (4)Response

a.

b.

c.

d.