The ratio of the radii of two right circular cylinders

An unexpected piece of good fortune  

Select the most appropriate meaning of the given idiom. "Go down like a lead balloon"

Select the most appropriate ANTONYM of the given word in bold

Callous 

Select the most appropiate ANTONYM of the given word.

HUMANE

A) Tantamount B) Natural C) Serious D) Equal

Versatile 

Select the most appropriate synonym of the bold word.

The benevolent gesture of the rich merchant was appreciated by all.

 Select the word which means the same as the group of words given.

causing great damage or suffering

The classteacher ________ all the seats of the students in the classroom.

Ramesh asked his friends to ________ the cards.