Question

What is 4.6 × 108 cm/min in meters per hour?

  A. 2.76 × 10^8  m/h   B. 2.76 × 10^10  m/h   C. 7.67 × 10^6  m/h   D. 7.67 × 10^8  m/h

Answer 1

`1m=100cm\to1cm=0.01m\\1h=60min\to1min=(1)/(60)h\\========================\\\\4.6*10^8\ cm/min=4.6*10^8*(0.01m)/((1)/(60)h)=4.6*10^8*0.6\ m/h\\\\=\boxed{2.76*10^8\ m/h}\\\\Answer:\fbox{A.}`