Aruna has only 1 and 2 coins with her.if the total number of coins that she has is 50 and the amount of money with her is 75,then find number of 1 and 2 coins
Answers
Answered by
51
Let the number of 1 coins with aruna be x
let the number of 2 coins with aruna be y
now, according to the question,
x + y = 50 ........ ( A )
also it is given that the total amount of money with her is 75
so,
x + 2y = 75 ............... ( B )
subtracting ( A ) from ( B ), we get
x + 2y = 75
- x - y = - 50
___________
y = 15 { put in equation ( A ) }
--------------------
x + 15 = 50
x = 50 - 15
x = 35
Hence we come to the conclusion that,
number of 1 coins with aruna = x = 35
number of 2 coins with aruna = y = 15
Answered by
18
Answer:
Let the number of 1 coins with aruna be x
let the number of 2 coins with aruna be y
now, according to the question,
x + y = 50 ........ ( A )
also it is given that the total amount of money with her is 75
so,
x + 2y = 75 ............... ( B )
subtracting ( A ) from ( B ), we get
x + 2y = 75
- x - y = - 50
___________
y = 15 { put in equation ( A ) }
--------------------
x + 15 = 50
x = 50 - 15
x = 35
Hence we come to the conclusion that,
number of 1 coins with aruna = x = 35
number of 2 coins with aruna = y = 15
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