GATE | GATE-CS-2014-(Set-3) | Question 8

The Gross Domestic Product (GDP) in Rupees grew at 7% during 2012-2013. For international comparison, the GDP is compared in US Dollars (USD) after conversion based on the market exchange rate. During the period 2012-2013 the exchange rate for the USD increased from Rs. 50/ USD to Rs. 60/ USD. India’s GDP in USD during the period 2012-2013

(A) increased by 5 %
(B) decreased by 13%
(C) decreased by 20%
(D) decreased by 11%


Answer: (D)

Explanation:

Suppose original GDP was x then its international
value is x/50. 

Now GDP becomes 107*x/100 and its international 
value becomes (107x/100)/60= 107x/6000.

The value has decreased by (x/50)-(107x/6000).  
Percentage approx 10.8% = 11%


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