Question

What is 7.8 × 105 m/h in kilometers per day?

A.
3.24 × 10^10 km/day

B.
3.24 × 10^8 km/day

C.
1.872 × 10^6 km/day

D.
1.872 × 10^4 km/day

Answer 1

`\sf(7.8* 10^5~m)/(1~hr) * (1~km)/(1000~m) *(24~hr)/(1~day)= ((7.8* 10^5) * 24~km)/(1000~day)\\\\= (18720000~km)/(1000~day)=18720 (km)/(day) = 1.872 * 10^4 (km)/(day)`

Your answer is D