Line charts - Data Interpretation Questions and Answers

Home / Data Interpretation / Line charts :: Discussion

If the expenditures in 1996 and 1999 are equal, then the approximate ratio of the income in 1996 and 1999 respectively is?

1:1

2:3

13:14

9:10

Answer : Option A

Explanation :

Let the expenditure in 1996 = x.

Also, let the incomes in 1996 and 1999 be I1 and I2 respectively.

Then, for the year 1996, we have:

55 = $\frac { I1 -X } { X }$ X 100 $\frac { 55 } { 100 }$ = $\frac { I1 } { X }$ -1 I₁ = $\frac { 155x } { 100 }$ ... (i)

70 = $\frac { I2-X } { X }$ x 100 $\frac { 70 } { 100 }$ = $\frac { I2} { X }$ -1 I₂ = $\frac { 170X } { 100 }$ ... (ii)

From (i) and (ii), we get:

$\frac { I1 } {I 2 }$ = $\frac { (155 X/100) } { (170 X/100) }$ = $\frac { 155 } {170}$ $\frac { 0.91 } { 1 }$ 9:10

Be The First To Comment

Comments

Name