Basic MathematicsArithmetic (KVPY StreamSA (Class 11) Math): Questions 21  25 of 83
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Question number: 21
» Basic Mathematics » Arithmetic » Rates
Appeared in Year: 2012
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
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
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
Question
The least positive integer n from which is,
Choices
Choice (4)  Response  

a.  7 

b.  8 

c.  9 

d.  6 

Question number: 25
» Basic Mathematics » Arithmetic » Ratio and Proportion
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 
