Phrases That Will Make You Sound Cool

Two friends blow two whistles at the same time. The first whistle makes a sound whose frequency is twice that of the sound made by the other whistle. Which sound will reach you first ?

Closure of which of the following makes louder sound of heartbeat ?

Directions : In the following questions, four alternatives are given for the Idiom/Phrase printed in bold in the sentence. Choose the alternatives which best expresses the meaning of the Idiom/Phrase.Unless you make make amenda for the loss, nobody is propared to excuse you.