one fourth of the number of pens I have are blue, two third of the remaining are black and the rest and are green. how many pens do I have?
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one fourth of the number of pens I have are blue, two third of the remaining are black and the rest and are green. how many pens do I have?
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Answer:
Step-by-step explanation:
total there are some numbers of pens
there are 1/4 are blue
there are 2/3 are black
there are x are black
now
1/4 + 2/3 + x =1
3 + 8 + 12x = 12
11 + 12x = 12
12x = 1
x = 1/12
there are one tweleth number are green
Continuation:
4x-x-2x = 10
4
x = 10
4
x=4*10
x=40
The total number of pens=40
Hope it helps
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