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Questions › JNU › JNU SSS 2013 › Q95
1 mark, −0.25Mathematics › Quantitative aptitude and data reasoning › Interest, growth rates and compoundingModerateabout 1 min

JNU SSS 2013 Question 95: Quantitative aptitude and data reasoning

There are two experts, X1X_1X1​ and X2X_2X2​, employed by the Planning Commission of Hubble Bubble to calculate the annual rate of growth of output in the country. Given that Y(t)Y(t)Y(t) denotes output in year ttt and Y(t−1)Y(t-1)Y(t−1) denotes output in the previous year (t−1)(t-1)(t−1), X1X_1X1​ calculates the rate of growth in year ttt using the formula [Y(t)−Y(t−1)]/Y(t)[Y(t) - Y(t-1)]/Y(t)[Y(t)−Y(t−1)]/Y(t) and X2X_2X2​ calculates it using the formula [Y(t)−Y(t−1)]/Y(t−1)[Y(t) - Y(t-1)]/Y(t-1)[Y(t)−Y(t−1)]/Y(t−1).

Suppose Hubble Bubble’s output in 2012 was greater than its output in 2011. Which expert calculated a higher rate of growth for 2012?

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Plain-text version

There are two experts, X₁ and X₂, employed by the Planning Commission of Hubble Bubble to calculate the annual rate of growth of output in the country. Given that Y(t) denotes output in year t and Y(t-1) denotes output in the previous year (t-1), X₁ calculates the rate of growth in year t using the formula [Y(t) - Y(t-1)]/Y(t) and X₂ calculates it using the formula [Y(t) - Y(t-1)]/Y(t-1). Suppose Hubble Bubble’s output in 2012 was greater than its output in 2011. Which expert calculated a higher rate of growth for 2012? (A) X₁ (B) X₂ (C) Both X₁ and X₂ calculated the same value for the rate of growth (D) Cannot be answered on the basis of the information provided

Also written as: There are two experts, X_1 and X_2, employed by the Planning Commission of Hubble Bubble to calculate the annual rate of growth of output in the country. Given that Y(t) denotes output in year t and Y(t-1) denotes output in the previous year (t-1), X_1 calculates the rate of growth in year t using the formula [Y(t) - Y(t-1)]/Y(t) and X_2 calculates it using the formula [Y(t) - Y(t-1)]/Y(t-1). Suppose Hubble Bubble’s output in 2012 was greater than its output in 2011. Which expert calculated a higher rate of growth for 2012?

Quantitative aptitude and data reasoning has come up 92 times in 6 exams since 2008.

What this question tests

This question is on Interest, growth rates and compounding, part of Quantitative aptitude and data reasoning in Mathematics.

Simple and compound interest and the growth-rate measures used for economies.

TestStop has 22 past-paper questions on this subtopic.

Practise Quantitative aptitude and data reasoningMore on Interest, growth rates and compounding

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