SOLUTION: Hi, everyone A sum of Rs 2000 is in the denomination of Rs.50 and Rs.10 notes. if the total number of notes be 80. Find the number of notes of each type.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Hi, everyone A sum of Rs 2000 is in the denomination of Rs.50 and Rs.10 notes. if the total number of notes be 80. Find the number of notes of each type.      Log On


   

Question 631353: Hi, everyone
A sum of Rs 2000 is in the denomination of Rs.50 and Rs.10 notes. if the total number of notes be 80. Find the number of notes of each type.
Answer by sachi(548) About Me  (Show Source):
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A sum of Rs 2000 is in the denomination of Rs.50 and Rs.10 notes. if the total number of notes be 80. Find the number of notes of each type.
ans:-
let no of rs 50 notes=x
then rs 10 notes = 80-x
the value = 50x+10(80-x)=2000
or 50x-10x+800=2000
or 40x=2000-800=1200
or x=1200/40=30
so no of rs 50 notes=30
& no of rs 10 notes = 80-x =80-30=50 ans