Question

Swati has some Rs 100 notes some Rs 50 notes and some Rs 20 notes. The total value of all the notes is Rs 800,so how many notes of each type does she have?

Answer 1

Answer:

Let the number of 100 rs note be h

number of 50 rs note be f

number of 20 rs note be t, then it is given

h×100+f×50+t×20=800 equation 1

You have 3 unknowns h,f and t, to find the values of these unknowns, you need 3 equations. you are given only 1 equation