Mathematics-Statistics (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 8 - 14 of 14

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Question number: 8

» Mathematics » Statistics

MCQ▾

Question

Ram’s income is 20 % more than that of Shyam. By how much percent is Shyam’s income is less than that of Ram?

Choices

Choice (4) Response

a.

16 2/7%

b.

16 2/3%

c.

16 4/5%

d.

16 1/3%

Question number: 9

» Mathematics » Statistics

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Question

A person buys a book for Rs. 500 and sells it for Rs. 300. His loss percent is

Choices

Choice (4) Response

a.

45%

b.

40%

c.

35%

d.

30%

Question number: 10

» Mathematics » Statistics

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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: 11

» Mathematics » Statistics

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Question

A card is drawn from a well shuffled pack of cards. The probability of getting a queen of club or a king of heart is

Choices

Choice (4) Response

a.

152

b.

113

c.

126

d.

All of the above

Question number: 12

» Mathematics » Statistics

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Question

The mean of 78 numbers is 27. If each observation is divided by 3, the new mean is

Choices

Choice (4) Response

a.

9

b.

27

c.

18

d.

None of the above

Question number: 13

» Mathematics » Statistics

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Question

If the mean and median of a set of numbers are 8.9 and 9 respectively, then the mode will be

Choices

Choice (4) Response

a.

8.2

b.

9.2

c.

10.2

d.

7.2

Question number: 14

» Mathematics » Statistics

MCQ▾

Question

For the data 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, …, 9, 9, the product of mean and mode equals to

Choices

Choice (4) Response

a.

9

b.

285

c.

57

d.

45

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