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Total expenditure of all three companies together in the year 2006 was what percentage of the total expenditure of company A overall the year together?
Answer & Solution
Correct Answer:
Option
A
$$\eqalign{
& \text{Required percentage} \cr
& = \frac{100+190+250}{80+100+130+200+210}\times100 \cr
& = 75\% \cr} $$
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