#### Related QuestionsVIEW ALL [3]

The price of relatives and weights of a set of commodities are given below:

Commodity |
A |
B |
C |
D |

Price relatives | 125 | 120 | 127 | 119 |

Weights | x | 2x | y | y + 3 |

If the sum of the weights is 40 and the weighted average of price relatives index number is 122, find the numerical values of x and y.

Construct 3 yearly moving averages from the following data and show on a graph against the original data:

Year |
2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 |

Annual sales in lakhs |
18 | 22 | 20 | 26 | 30 | 22 | 24 | 28 | 32 | 35 |

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