# NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension: Questions 556 - 562 of 816

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## Question number: 556

MCQ▾

### Question

If the product of two numbers is 21 and their difference is 4, then the ratio of the sum of their cubes to the difference of their cubes is

### Choices

Choice (4) Response

a.

185: 165

b.

158: 145

c.

165: 158

d.

185: 158

## Question number: 557

MCQ▾

### Question

A lady reaches her office 20 min late by travelling at a speed of 20 km/h and reaches 15 min early by travelling at 30 km/h. By how much time will she be early or late, if she travels at 25 km/h?

### Choices

Choice (4) Response

a.

5 min late

b.

1 min late

c.

1 min early

d.

5 min early

## Question number: 558

MCQ▾

### Question

The most essential organ for fertilization is

### Choices

Choice (4) Response

a.

Green sepals

b.

Mature ovule

c.

Colored petals

d.

Juicy fruit

## Question number: 559

MCQ▾

### Question

One of the most resistant known biological materials is

### Choices

Choice (4) Response

a.

Lignin

b.

Sporopollenin

c.

Lignocellulose

d.

Hemicellulose

## Question number: 560

MCQ▾

### Question

The Puma, the Wardha, the Pranhita are the tributaries of

### Choices

Choice (4) Response

a.

Godavari

b.

c.

Tapi

d.

## Question number: 561

MCQ▾

### Question

∆ABC is a triangle with AB = AC and BC = 9 cm. If the height from A to BC is 6 cm, then the height from C to AB (in cm), is

### Choices

Choice (4) Response

a.

6.0

b.

7.2

c.

7.5

d.

8.0

## Question number: 562

MCQ▾

### Question

If the simple interest for a certain sum at 7 % per annum for 2 years is Rs. 400. What will be the difference between the compound interest and simple interest?

### Choices

Choice (4) Response

a.

Rs. 14

b.

Rs. 16

c.

Rs. 12

d.

Rs. 10

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