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Bar Charts

The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.

Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.

Q1:

What is the ratio of the average production of Company X in the period 1998-2000 to the average production of Company Y in the same period?

A 1:1

B 15:17

C 23:25

D 27:29

ANS:C - 23:25

Average production of Company X in the period 1998-2000

    = [ 1 x (25 + 50 + 40) ] = ( 115 ) lakh tons.
3 3
Average production of Company Y in the period 1998-2000
    = [ 1 x (35 + 40 + 50) ] = ( 125 ) lakh tons.
3 3

Therefore Required ratio =
( 115 )
3
= 115 = 23 .
( 125 )
3
125 25



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