1. Conversion of fixed base index numbers into chain base index numbers

Year	Index
2009	120
2010	132
2011	96
2012	144
2013	138
2014	108

Solution:
Conversion of fixed base index numbers into chain base index numbers :

Since base year is not mentioned here, So we will take 100 as the chain base index number for first year

`"Chain base index number"=("Fixed base index number of current year")/("Fixed base index number of preceding year") xx 100`

Year	Fixed base index number	Chain base index number
2009	120	`=100`
2010	132	`(132)/(120)xx100=110`
2011	96	`(96)/(132)xx100=72.7273`
2012	144	`(144)/(96)xx100=150`
2013	138	`(138)/(144)xx100=95.8333`
2014	108	`(108)/(138)xx100=78.2609`

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