Question

1 10. If of a pencil is black, of the remaining is white and the remaining 1430 8. 2. 3 1 1 cm is blue, then the total length of the pencil is 2 2 1) 80 mm 2) 8 cm 3) 12 cm 4) 120 mm​

Answer 1

Answer:

Explanation:

Let the total length of the pencil = x cms

From the given data,

'x/8' is black

Remaining part = x - x/8 = 7x/8

1/2 of 7x/8 is white

=> 7x/16 is white (Remaining part is 7x/16)

And given that the remaining part is blue and is 3 1/2 cm = 7/2 = 3.5 cm

That remaining part = 7x/16

Therefore,

7x/16 = 7/2

x = 16/2 = 8

Hence, the total length of the pencil = x = 8 cm.