An electrician charges $13.85 per hour. find the charge of labour if he works from 11:20 a.m. till 2:50 p/m
$${\mathtt{3.5}}{\mathtt{\,\times\,}}{\mathtt{13.85}} = {\frac{{\mathtt{1\,939}}}{{\mathtt{40}}}} = {\mathtt{48.475}}$$
$48.48
4,847.5 cents may be the answer.