Index numbersmediumFree question
Index numbers Numerical Reasoning Question
With the base year value 500 set to an index of 100, what is the index for a year with value 700?
A1.40
B40.0
C71.40
D140.0
E200
Worked solution
An index of i means i% of the base: value = base value × index ÷ 100. The correct answer is 140.0. Traps to avoid: 1.40 comes from the "ratio not times 100" error; 40.0 comes from the "percent change not index" error; 71.40 comes from the "inverted" error; 200 comes from the "absolute difference" error.
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