Mr Kapur withdrew rs 25000 from an ATM If he received 150 notes in denominations of rs 500 and rs - Maths - Linear Equations in One Variable

Question

Mr Kapur withdrew rs 25000 from an ATM If he received 150 notes
in denominations of rs 500 and rs 100,find the no of notes of each
denomination?
although i know how to do it, but it is a 2 variable method can
u suggest a 1 variable method?
ans-25,125
thanx

Abhishek Kr. Jha · Accepted Answer

Suppose the number of Rs 500 notes be x
Total number of notes = 150
Then, number of Rs 100 notes = 150-x
Amount of 150 notes = 500x+100150-x
Total amount withdrew from an ATM = Rs 25000
So we have;
500x+100150-x=25000⇒500x+15000-100x=25000⇒400x=25000-15000⇒x=10000400=25
Therefore number of Rs 500 notes = 25 and number of Rs 100 notes =
150-25=125

Mr.Kapur withdrew rs.25000 from an ATM.If he received 150 notes in denominations of rs.500 and rs.100,find the no. of notes of each denomination? although i know how to do it, but it is a 2 variable method...can u suggest a 1 variable method? ans-25,125 thanx

Mr.Kapur withdrew rs.25000 from an ATM.If he received 150 notes in denominations of rs.500 and rs.100,find the no. of notes of each denomination?

although i know how to do it, but it is a 2 variable method...can u suggest a 1 variable method?

ans-25,125

thanx