Question

cost of 4 dozen bananas os rs 180 How many bananas can be purchased for rs 37.50

Answer 1

lets compare:
bananas              cost
48 (4 dozen)         180 (in rs)
x                            37.50

now cross multiplication

x*180 = 48*37.50
180x   = 1800
   x      = 1800/180
   x      =   10 bananas