During the time study on a job, the representative time, the rating and allowances are observed to be 0.4 minutes, 120% and 10% of standard time respectively. The normal time and standard time, in minutes, are respect
(a) 0.48 and 0.533 (b) 0.533 and 0.48
(c) 0.6 and 0.66 (d) 0.7 and 0.8