A lady has some 50 paise coins and some 25 paise coins in her purse if in all she 55 coins totalling Rs. 21.25 how many 50 paise coins she was?
please explain each & every step
Answers
Answered by
71
number of 50 paise coins =x
number of 25 paise coins=y
x+y=55---(1)
50x+25y=2125
divide each term with 25
2x+y=85----(2)
subtract (1) from (2)
x=30
substitute x=30 in (1) u get
y=25
therefore
number of 50paise coins=x=30
number of 25 paise coins=y=25
number of 25 paise coins=y
x+y=55---(1)
50x+25y=2125
divide each term with 25
2x+y=85----(2)
subtract (1) from (2)
x=30
substitute x=30 in (1) u get
y=25
therefore
number of 50paise coins=x=30
number of 25 paise coins=y=25
Similar questions