Question
The outer radius of a hollow metallic spherical ball is
12 cm while the thickness of the metal used to make it is 6 cm. Find the volume of the metal used in making this ball.Solution
Inner radius of the ball= (12-6) =6cm Required volume= 4Ļ/3 (12³ -6³)Ā =4Ļ/3(1728-216) = =4Ļ/3 Ć1512=2016ĻĀ
In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.
Loss of appetite
Ā Fill in the blanks with the appropriate antonym of the word in Italic from the options given:
His optimistic outlook was replaced by _______ ...
- Select the most appropriate ANTONYM of the given word.
Eager Internecine
The poor manāsĀ son is working very hardly.
The Girls said, āHurrah! we have won the battleā.
The original chapel was built in the ________ of CharlesĀ
14. Malevolent
...EmbitteredĀ