If 1/8 of a pencil is black,1/2 of the remaining is white and the remaining 3+1/2 cm is blue, find the total length of the pencil
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Let's assume length of the pencil is x
As per the question,portion(length) of black in pencil = x/8
Remaining portion = x - x/8 = 7x/8
So, white portion = 1/2 x 7x/8 = 7x/16
So, remaining portion = 7x/8 - 7x/16 = 7x/16
As per the question,
7x/16 = 3.5
X=8cm
As per the question,portion(length) of black in pencil = x/8
Remaining portion = x - x/8 = 7x/8
So, white portion = 1/2 x 7x/8 = 7x/16
So, remaining portion = 7x/8 - 7x/16 = 7x/16
As per the question,
7x/16 = 3.5
X=8cm
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