Question

Rita has only 100 rupee notes and 50 rupee notes. She has 7000 rupee in total. The ratio of 100 rupee notes to 50 rupee notes is 5:4. How many notes of each type does she have ?

Answer 1

Answer:

Lets assume 100 rupee notes : H

And 50 rupees notes: F

And given is H:F :: 5:4

F= 4H/5 ——- eqn 1

And given , 100H + 50F = 7000 ——— eqn2

Put F value in eq 2

100H + 50*4H/5 = 7000

140H = 7000 => H = 50

Put H's value in eqn 1

F= 4*50/5 = 40

So 100 rupees notes are 50 and 50 rupees notes are 40 is amswer