A man earns Rs 20 on the first day and spends Rs 15 on the next day. He again
earns Rs 20 on the third day and spends Rs 15 on the fourth day. If he continues to save like
this, how soon will he have Rs 60 in hand?

A

On $$17^{th}$$ day

B

On $$27^{th}$$ day

C

On $$24^{th}$$ day

D

On $$30^{th}$$ day