Question

Peter is overweight.He is 105 Kg.His aim is to lose 500 per week.If he manages this,how many weeks will it be until he is 90Kg?

Answer 1

105 kg to 90 kg 
If he looses 50 kg  a week it would be about less than 1 wk.
If he looses 5 kg a week it would be 3 weeks.
He can not loose 500 kg in a week.

Answer 2

.3  weeks...................