Question

If 1/8 of a pencil is black,1/2 of the remaining is white and the remaining,3.5cm is blue,find the total lenth of the pencil

Answer 1

Answer:

8 cm

Step-by-step explanation:

Let the length be x (in centimetres).

x/8 is black

remaining is x - x/8 = 7x/8

half of that is white, so 7x/16 is white

the other half is blue, so blue is 7x/16 as well

but we're told amount of blue is 3.5 cm, so

7x/16 = 3.5

=> 7x = 56

=> x = 8

Answer 2

Answer:

Step-by-step explanation:

Let the total length of the pencil be x

Then

Black portion=x/8

White=x/2

Adding all of them

X/8 + x/2 +3.5=x

After solving we get

X=9.33 cm

Mark it the best plzzzz