Mathematics (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 11 - 16 of 112

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Question number: 11

» Mathematics » Mensuration

MCQ▾

Question

A solid metal sphere of surface area S 1 is melted and recast into a number of smaller spheres. S 2 is the sum of the surface areas of all the smaller spheres. Then

Choices

Choice (4) Response

a.

S 1 = S 2 only if all the smaller spheres of equal radii

b.

S 2 > S 1

c.

S 1 > S 2

d.

S 1 S 2

Question number: 12

» Mathematics » Statistics

MCQ▾

Question

Median of a data set is a number which has an equal number of observations below and above it. The median of the data 1,9, 4,3, 7,6, 8,8, 12,15 is

Choices

Choice (4) Response

a.

7.5

b.

8

c.

7

d.

any number between 7 and 8

Question number: 13

» Mathematics » Linear Equation

MCQ▾

Question

Rs. l and Rs. 5 coins are available (as many required). Find the smallest payments which cannot be made by these coins, if not more than 5 coins are allowed

Choices

Choice (4) Response

a.

14

b.

18

c.

3

d.

12

Question number: 14

» Mathematics » Basic Geometry

MCQ▾

Question

Which of the following polygons are uniquely determined when all the sides are given?

Choices

Choice (4) Response

a.

Quadrilateral

b.

Pentagon

c.

Triangle

d.

Hexagon

Question number: 15

» Mathematics » Basic Geometry

MCQ▾

Question

Suppose you walk from home to the bus stand at 4 km/h and immediately return at x km/h. If the average speed is 6 km/h then x is

Choices

Choice (4) Response

a.

12 km/h

b.

8 km/h

c.

Cannot be determined unless the distance from home to bus stand is known.

d.

10 km/h

Question number: 16

» Mathematics » Basic Geometry

MCQ▾

Question

If one angle of a regular polygon be , then number of sides of the polygon is

Choices

Choice (4) Response

a.

24

b.

27

c.

36

d.

6

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