Compared to yesterday you did 3 times the work in one third the time. To so so your power output must have been:

Compared to yesterday you did 3 times the work in one third the time. To so so your power output must have been:a) the same as yesterday’s power outputb)one third of yesterday’s power outputc)3 times yesterday’s power outputd)9 times yesterday’s power outputa) obviously isn’t the correct answer. Wouldn’t the answer be d)?