Question

give detailed solution ​

Answer 1

Answer:

Obviously

in 4 days because 18*4=72

Answer 2

Step-by-step explanation:

In 12 days = 1.8 ×10^8kg

so in one day = 1.8×10^8/12

=15 × 10^6

so for 7.2 × 10^8 = 5 days (approx)