Question

35 inland letters cost $87.50.how many such letters can we buy for $315

Answer 1

35 - $87.50
?  -$ 315

315×35
  87.50


126
we can buy 126 such letters for $315

Answer 2

first we have to divide 87.50 by 35 = 2.5 
Then multiply 315 by 2.5 = 787.5
Ans- We can buy 787.5 letters in $315.