Arithmetic (IAS (Admin.) Prelims CSAT PaperII (Aptitude)): Questions 8  11 of 42
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Question number: 8
» Arithmetic » Basic Statistics
Appeared in Year: 2017
Question
There are thirteen 2digit consecutive odd numbers. If 39 is the mean of the first five such numbers, then what is the mean of all the thirteen numbers?
Choices
Choice (4)  Response  

a.  47 

b.  45 

c.  51 

d.  49 

Question number: 9
» Arithmetic » Basic Statistics
Appeared in Year: 2017
Question
Four tests—Physics, Chemistry, Mathematics and Biology are to be conducted on four consecutive days, not necessarily in the same order. The Physics test is held before the test which is conducted after Biology. Chemistry is conducted exactly after two tests are held. Which is the last test held?
Choices
Choice (4)  Response  

a.  Mathematics 

b.  Biology 

c.  Chemistry 

d.  Physics 

Question number: 10
» Arithmetic » Numbers and Counting » Base Numbers
Appeared in Year: 2017
Question
A 2digit number is reversed. The larger of the two numbers is divided by the smaller one. What is the largest possible remainder?
Choices
Choice (4)  Response  

a.  27 

b.  45 

c.  95 

d.  36 

Question number: 11
» Arithmetic » Ratio, Proportion and Chain Rule
Appeared in Year: 2017
Question
If there is a policy that 1/3rd of a population of a community has migrated every year from one place to some other place, what is the leftover population of that community after the sixth year, if there is no further growth in the population during this period?
Choices
Choice (4)  Response  

a.  32/243rd part of the population 

b.  64/729th part of the population 

c.  32/729th part of the population 

d.  16/243rd part of the population 
