Question:hard


Directions: The line graph shows the monthly average Sensex report from May'14 to November'14.

What is the ratio between the highest reading and lowest reading of the Sensex report during the given period? (approximately)

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Identify the highest and lowest points on the graph, divide the highest by the lowest, and compare the decimal value to each option.
Updated On: Jul 20, 2026
  • 7 : 5
  • 11 : 10
  • 25 : 23
  • 34 : 31
  • 43 : 39
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The Correct Option is D

Solution and Explanation

Instead of comparing decimals, cross-multiply the computed ratio against each option and see which gives the smallest gap.
Computed ratio: $\dfrac{10631.12}{9734.22}$.
Testing $34:31$: $34 \times 9734.22 = 330963.48$ and $31 \times 10631.12 = 329564.72$, a gap of about $1398.76$.
Testing $11:10$: $11 \times 9734.22 = 107076.42$ and $10 \times 10631.12 = 106311.20$, which as a fraction of $9734.22\times10 = 97342.2$ gives a proportionally larger gap than the $34:31$ test.
Testing $25:23$: $25\times9734.22=243355.5$ and $23\times10631.12=244515.76$, gap $1160.26$, close but scaled against a smaller base it is slightly farther in relative terms than $34:31$.
The relative error is smallest for $34:31$.
\[\boxed{34:31}\]
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