Basic Mathematics (KVPY StreamSA (Class 11) Math): Questions 137  141 of 156
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Question number: 137
» Basic Mathematics » Arithmetic » Rates
Question
Given area four cylindrical buckets A, B, C, D whose circular bases are of radii 2, 4, 6, 8 units, respectively. Initially water is filled in these buckets up to the same height. Some water is then transferred from D to A and B so that they all three have the same volume of water. Some water is then transferred between C and B so that they both have the same volume of water. If , denote the heights of water at this stage in the buckets A, B respectively, then the ratio equals –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 138
» Basic Mathematics » Geometry » Polygons With More Than 4 Sides
Question
12 sphere of same size are made from melting a solid cylinder of 16 cm diameter and 2 cm height. The diameter of each sphere is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 139
» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method
Question
15 men can complete a work in 6 days and 15 children take 12 days to complete a work. How many days will 5 men and 10 children take to complete the work?
Choices
Choice (4)  Response  

a.  12  
b.  9  
c.  8  
d.  10 
Question number: 140
» Basic Mathematics » Algebra » Solutions to Equations
Question
Roots of equation: are –
Choices
Choice (4)  Response  

a.  7, 6  
b.  5, 3  
c.  7, 4  
d.  7, 6 
Question number: 141
» Basic Mathematics » Arithmetic » Ratio and Proportion
Question
When a bucket is onethirds full, the weight of the bucket and the water is 15 kg. When the bucket is twothirds full, the total weight is 18 kg. What is the total weight, in kg, when the bucket is completely full?
Choices
Choice (4)  Response  

a.  15 kg  
b.  17 kg  
c.  19 kg  
d.  21 kg 