Basic Mathematics-Arithmetic (KVPY Stream-SA (Class 11) Math): Questions 21 - 25 of 83

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Question number: 21

» Basic Mathematics » Arithmetic » Rates

Appeared in Year: 2012

MCQ▾

Question

A train leaves Pune at 7: 30 am and reaches Mumbai at 11: 30 am. Another train leaves Mumbai at 9: 30 am and reaches Pune at 1: 00 pm. Assuming that the two trains travel at constant speeds, at what time do the two trains cross each other?

Choices

Choice (4) Response

a.

11: 30 am

b.

10: 26 am

c.

data not sufficient

d.

10: 20 am

Question number: 22

» Basic Mathematics » Arithmetic » Ratio and Proportion

Appeared in Year: 2014

MCQ▾

Question

In a cinema hall, the charge per person is Rs. 200. On the first day, only 60 % of the seats were filled. The owner decided to reduce the price by 20 % and there was an increase of 50 % in the number of spectators on the next day. The percentage increase in the revenue on the second day was

Choices

Choice (4) Response

a.

20

b.

50

c.

30

d.

40

Question number: 23

» Basic Mathematics » Arithmetic » Number Games

MCQ▾

Question

How many distinct primes is dividing 21! + 22! + 23! ?

Choices

Choice (4) Response

a.

12

b.

9

c.

5

d.

7

Question number: 24

» Basic Mathematics » Arithmetic » Absolute Value

MCQ▾

Question

The least positive integer n from which n+13n3<112 is,

Choices

Choice (4) Response

a.

7

b.

8

c.

9

d.

6

Question number: 25

» Basic Mathematics » Arithmetic » Ratio and Proportion

MCQ▾

Question

The average incomes of the people in two villages are P and Q, respectively. Assume that P ≠ Q. A person moves from the first village to the second village. The new average incomes are P’ and Q’, respectively. Which of the following is not possible?

Choices

Choice (4) Response

a.

P’ > P and Q’ < Q

b.

P’ > P and Q’ > Q

c.

P’ = P and Q’ = Q

d.

P’ < P and Q’ < Q

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