Geometry [NRA CGL (National Recruitment AgencyCombined Graduate Level) Mathematics]: Questions 23  28 of 29
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Question number: 23
Question
MCQ▾There is a rectangular tank of length 130 m and width110 m in a circular field. If the area of the land portion of the field 66088 , what is the radius of the field?
Choices
Choice (4)  Response  

a.  137.42 m  
b.  98.69 m  
c.  175.56 m  
d.  159.93 m 
Question number: 24
Question
MCQ▾A cistern 5 m long and 6 m wide, contains water up to a depth of 2 m. the total area of the wet surface is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 25
Question
MCQ▾The area of the biggest circle, which can be drawn inside a square of side 42 cm, is (Paper I)
Choices
Choice (4)  Response  

a.  sq. cm.  
b.  1445 sq. cm.  
c.  1465 sq. cm.  
d.  1645 sq. cm. 
Question number: 26
Question
MCQ▾If the length of rectangle is increased in the ratio 6: 7 and its breadth is diminished in the ratio 5: 4 then its area will be diminished in the ratio
Choices
Choice (4)  Response  

a.  8: 7  
b.  9: 8  
c.  15: 14  
d.  17: 16 
Question number: 27
Question
MCQ▾The area of the biggest circle, which can be drawn inside a square of side 20 cm, is (Paper I)
Choices
Choice (4)  Response  

a.  445.34 sq. cm.  
b.  325.56 sq. cm.  
c.  645.64 sq. cm.  
d.  314.29 sq. cm. 
Question number: 28
Question
MCQ▾There is a rectangular tank of length 90 m and width 60 m in a circular field. If the area of the land portion of the field 14000 , what is the radius of the field?
Choices
Choice (4)  Response  

a.  87.75 m  
b.  59.93 m  
c.  78.57 m  
d.  95.39 m 