sally and hans started counting at the same time. sally counted on by tens from 300. hans counted back by hundreds. after six counts they had reached the same number. what number did hans start counting from?

Answer 1

Han's starting number ------ x , counts backwards by 100
Sally's starting number ----- 300 counts forward by 10

after 6 counts, Sally is 360
after 6 counts, Han's is at x - 600

x - 600 = 360
x = 960