# Mathematics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 171 - 175 of 224

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## Question number: 171

» Mathematics » Trigonometry

MCQ▾

### Question

An aero plane flying at a height of 300 m above the ground phase vertically above another plane at an instant when the angle of elevation of the two planes from the same point on the ground are and , respectively. The height of the lower plane from the ground (in m) is

### Choices

Choice (4) Response

a.

150

b.

c.

50

d.

## Question number: 172

» Mathematics » Percentage

MCQ▾

### Question

A rise of in the price of grapes compels a person to buy kg of grapes less for Rs. 240. Then, the original price of grapes per kg is

### Choices

Choice (4) Response

a.

Rs. 30

b.

Rs. 32

c.

Rs. 40

d.

Rs. 28

## Question number: 173

MCQ▾

### Question

If, then the value of is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 174

» Mathematics » Mensuration

MCQ▾

### Question

The internal and external diameters of a hollow hemispherical vessel are 24 cm and 25 cm, respectively. The total area to be painted is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 175

» Mathematics » Basic Geometry

MCQ▾

### Question

In a circle of radius 17 cm, two parallel chords are drawn on opposite side of a diameter. The distance between the chords is 23 cm. If the length of one chord is 16 cm, then the length of the other is

### Choices

Choice (4) Response

a.

23 cm

b.

30 cm

c.

34 cm

d.

15 cm

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