John had some pencils. 3/5 of them were red and the rest were green.he gave 2/3 of the red pencils and 1/4 of the green pencils to his sister left. if he had 80 pencils left how many pencils did he have at first
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Answer:
Step-by-step explanation:
Let no of pencil be x.
red = 3x/5
green= (x-3x/5)=2x/5
red pencil given to sister = 2/3*3x/5 = 2x/5
red pencil left = 3x/5-2x/5 = x/5
green pencil given to sister = 1/4*2x/5 = x/10
green pencil left= 2x/5-x/10 =3x/10
total pencil left = x/5 + 3x/10 = x/2
A/C, x/2=80
x= 160.
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