The double line graph given below gives the actual and expected sales of cars of a company for six months. Study the graph and answer the questions that follow :

`(i)` In which month was the actual sale same as the expected sale ?
`(ii)` For which month was the difference between the actual and expected sales the maximum ?
`(iii)` For which month was the difference in actual and expected sales the least ?
`(iv)` What was the total sales of cars in the months of January. February and March ?
`(v)` What is the average sales of cars in the last `3` months ?
`(vi)` Find the ratio of sales in the first `3` months to that in the last `3` month?