When the base year of a fixed base index series is changed from 2010 to 2015, the new index for 2020 is obtained by:
A. Adding the old indices
B. Multiplying old index by 100/index of new base year
C. Dividing old index by old index of new base year and multiplying by 100
D. Taking the geometric mean of the two indices
Answer: Option C
Solution (By JKSSB Mock Tests)
New index = (Old index for target year / Old index for new base year) × 100.
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