Question

Sunita cuts a sheet of paper into three pieces
Length of first piece is equal to the average of
the three single digit odd prime numbers.
Length of the second piece is equal to that of
the first plus one-third the length of the third
The third piece is as long as the other two
pieces together. The length of the original
sheet of paper is
(a) 13 units
(b) 15 units
(c) 16 units
(d) 30 units​

Answer 1

Answer:

Step-by-step explanation:

Let length of 3 pieces be x,y,z respectively

So total length=x+y+z

Now x=3+5+7/3=5

So,y=x+z/3

=>3y=3x+z

=>3y=15+z......(1)

Also,z=x+y......(2)

Put eq.(2) in eq.(1)

So 3y=15+x+y

=>2y=20

=>y=10

From eq.(1)

z=10+5=15

So Total length is x+y+z=5+10+15=30units