Basic Mathematics (KVPY StreamSA (Class 11) Math): Questions 125  130 of 164
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 265 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 200.00 or
Question number: 125
» Basic Mathematics » Arithmetic » Number Games
Question
Consider an incomplete pyramid of balls on a square base having 15 layers; and having 10 balls on each side of the top layer. Then the total number N of balls in that pyramid satisfies
Choices
Choice (4)  Response  

a.  60000 < N < 7000 

b.  4000 < N < 5000 

c.  5000 < N < 6000 

d.  3000 < N < 40000 

Question number: 126
» Basic Mathematics » Geometry » Triangle and Properties
Question
The number of values of a for which there is an isosceles triangle with sides of length , and is –
Choices
Choice (4)  Response  

a.  1 

b.  0 

c.  2 

d.  3 

Question number: 127
» Basic Mathematics » Algebra » Solutions to Equations
Question
If a, b, c, d are positive real numbers such that, , then is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 128
» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method
Question
A ladder 12 cm long is leading against a wall. The bottom of the ladder is pulled along the ground, away from the wall, at the rate of 3 cm/sec. How fast is its height on the wall decreasing when the foot of the ladder is 5 cm away from the wall?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 129
» Basic Mathematics » Geometry » Polygons With More Than 4 Sides
Question
25 sphere of same size are made from melting a solid cylinder of 20 cm diameter and 9 cm height. The diameter of each sphere is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 130
» Basic Mathematics » Arithmetic » Ratio and Proportion
Question
A bag contains 50 p, 25 p and 10 p coins in the ratio , amounting to Rs. 95. Find the numbers of coins of each type,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

