KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Math: Questions 127  130 of 265
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Question number: 127
» Basic Mathematics » Arithmetic » Ratio and Proportion
Question
A man standing on a railway platform noticed that a train took 21 seconds to cross the platform (this means the time elapsed from the moment the engine enters the platform till the last compartment leaves the platform) which is 88 meters long, and that it took 9 seconds to pass him. Assuming that the train was moving with uniform speed, what is the length of the train in meters?
Choices
Choice (4)  Response  

a.  60 

b.  66 

c.  55 

d.  72 

Question number: 128
» Basic Mathematics » Arithmetic » Rates
Question
Given area three cylindrical buckets X, Y, Z whose circular bases are of radii 1, 2, 3 units, respectively. Initially water is filled in these buckets up to the same height. Some water is then transferred from Z to X so that they both have the same volume of water. Some water is then transferred between X and Y so that they both have the same volume of water. If, denote the heights of water at this stage in the buckets Y, Z respectively, then the ratio equals –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  1 

Question number: 129
» Basic Mathematics » Algebra » Solving Equations
Question
If , , then is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 130
» Basic Mathematics » Geometry » Advanced Therorems and Properties
Question
The three different face diagonals of a cuboid (rectangular parallelepiped) have lengths 70, 82, 86. The length of the main diagonal of the cuboid which joins a pair of opposite corners is
Choices
Choice (4)  Response  

a.  90.78 

b.  97.52 

c.  80.63 

d.  95.36 
