Question

Sharda has five time as many 20 rupees tes as she has 50 rupee notes . Altogether she has 900 rupees . How many 20 rupee note does she have?

Answer 1

let the the number of Rs 50 be x

so the number of Rs 20 are 5x

50x+150x=900

150x=900

x=6

so the number of Rs 20 notes are 5×6=30