Mathematics (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 10 - 15 of 112

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Question number: 10

» Mathematics » Linear Equation

MCQ▾

Question

There are several human beings and several dogs in a room. One tenth of the humans have lost a leg. The total numbers of feet are 77. Then the number of dogs is

Choices

Choice (4) Response

a.

Not determinable due to insufficient data

b.

4

c.

5

d.

6

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 Equation 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

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