Basic MathematicsArithmetic (KVPY StreamSA (Class 11) Math): Questions 17  20 of 83
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Question number: 17
» Basic Mathematics » Arithmetic » Clocks
Appeared in Year: 2012
Question
Observe that, at any instant, the minute and hour hands of a clock make two angles them whose sum is 360? . At 6: 15 the difference between these two angles is.
Choices
Choice (4)  Response  

a.  175 

b.  170 

c.  165 

d.  180 

Question number: 18
» Basic Mathematics » Arithmetic » Ratio and Proportion
Appeared in Year: 2013
Question
There are three kinds of liquids X, Y, Z. Three jars J_{1}, J_{2}, J_{3} contain 100 ml of liquids X, Y, Z respectively. By an operation we mean three steps in the following order:
 stir the liquid in J_{1} and transfer 10 ml from J_{1} into J_{2};
 stir the liquid in J_{2} and transfer 10 ml from J_{2} into J_{3};
 stir the liquid in J_{3} and transfer 10 ml from J_{3} into J_{1};
After performing the operation four times, let x, y, z be the amounts of X, Y, Z, respectively, in J_{1}. Then
Choices
Choice (4)  Response  

a.  Y > X > Z 

b.  X > Y > Z 

c.  Z > X > Y 

d.  X > Z > Y 

Question number: 19
» Basic Mathematics » Arithmetic » Number Games
Appeared in Year: 2014
Question
The number of 6digit numbers of the form ababab (in base 10) each of which is a product of exactly 6 distinct primes is
Choices
Choice (4)  Response  

a.  15 

b.  10 

c.  13 

d.  8 

Question number: 20
» Basic Mathematics » Arithmetic » Rates
Question
I carried 100 kg of metal bucket of water in summer by train. In the beginning, the water content was 80%. By the time I reached the destination, the water content had dropped to 75%. The reduction in the weight of the bucket with water was
Choices
Choice (4)  Response  

a.  15 kg 

b.  20 kg 

c.  25 kg 

d.  30 kg 
