Question
A cone has a base radius of 6 cm and a height of 8 cm.
If it is melted and recast into spheres of radius 2 cm, how many such spheres can be made?Solution
Volume of cone = 1/3 × π × r² × h = 1/3 × π × (6)² × 8 = 96π Volume of one sphere = 4/3 × π × r³ = 4/3 × π × (2)³ = 32/3 π Number of spheres = Volume of cone / Volume of sphere = 96π / (32/3 π) = 9 Correct answer: b. 9
1. We must recognize that politics
P. about the careers and fortunes
Q. citizens and not
R. and elections are about
S. the l...
Find the appropriate word.
Find the appropriate word.
In the sentence marked as (6) in the passage, find out an error, if there is any. If there is no error, mark option 5, ‘No error’ as the answer.
 Select the most appropriate option to fill in blank
Select the most appropriate option for blank No. 3.
Find the appropriate word for Blank 5.
Choose the most appropriate option for blank no. 2
Find the appropriate word.
Choose the most appropriate word to fill the blank (b)
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