Question

How many seconds are there in four and a half minutes?

Answer 1

Heya!!!

1 min = 60 sec
therefore 4 and half minutes means = 4 * 60 + 30
                                                         = 240 + 30
                                                         = 270 seconds

Answer 2

1min= 60secs
4mins = 60 × 4. 1/2 secs
=9/2 × 60
= 270 secs