If the height of a right circular cone is increased by 200% and the radius of the base is reduced by 50%, then the volume of the cone:

1.  Remains unaltered

2.  Decrease by 25%

3.   Increase by 25%

4.  Increase by 50%

View Answer  
4
Correct Answer :

Decrease by 25\%


Explanation :
No Explanation available for this question

If the height of a cone be doubled and radius of base remains the same, then the ratio of the volume of the given cone to that of the second cone will be

1.  1:2

2.  2:1

3.  1:8

4.   8:1

View Answer  
4
Correct Answer :

1:2


Explanation :
No Explanation available for this question

125, 127, 130, 135, 142, 153, 165

1.  130

2.  142

3.  153

4.  165

View Answer  
4
Correct Answer :

165


Explanation :
No Explanation available for this question

16, 36, 64, 81, 100, 144, 190

1.  81

2.  100

3.  190

4.  36

View Answer  
4
Correct Answer :

190


Explanation :
No Explanation available for this question

125, 123, 120, 115, 108, 100, 84

1.  123

2.  115

3.  100

4.  84

View Answer  
4
Correct Answer :

100


Explanation :
No Explanation available for this question

What would be the difference between the simple interest and the compound interest on a sum of money at the end of four years I. The rate of interest is 5 p.c.p.a II. The sum fetches a total of Rs. 2000 as simple interest at the end of 8 years III. The difference between the simple interest and the compound interest at the end of 2 years is Rs. 12.50

1.  II only

2.  III only

3.  II and III only

4.  All I, II and III are required

5.  None of these

View Answer  
5
Correct Answer :

II and III only


Explanation :
No Explanation available for this question

3, 10, 21, 36, 55, 70, 105

1.  105

2.  70

3.  36

4.  55

View Answer  
4
Correct Answer :

70


Explanation :
No Explanation available for this question

Mr. Gupta borrowed a sum of money on compound interest. What will be the amount to be repaid if he is repaying the entire amount at the end of 2 years I. The rate of interest is 5 p.c.p.a II. Simple interest fetched on the same amount in one year is Rs. 600 III. The amount borrowed is 10 times the simple interest in 2 years

1.  I only

2.   III only

3.  I and II only

4.  I and III only

5.  All I, II and III are required

View Answer  
5
Correct Answer :

I and III only


Explanation :
No Explanation available for this question

4, 9, 19, 39, 79, 160, 319

1.  319

2.  160

3.  79

4.  39

View Answer  
4
Correct Answer :

160


Explanation :
No Explanation available for this question

Two cones have their heights in the ratio of 1:3 and the radii 3:1. The ratio of their volume is

1.  1:1.

2.  1:3

3.  3:1

4.  2:3

View Answer  
4
Correct Answer :

3:1


Explanation :
No Explanation available for this question
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