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A forecast is to be made of the results of five cricket matches, each of which can be a win or a draw or a loss for Indian team. Let `p=` number of forecasts with exactly 1 error `q=` number of forecasts with exactly 3 error `r=` number of forecasts with all five error Then the correct statement(s) is/are a. `2q=5r` b. `8p-q` c. `8p-r` d. `2(p+r)> q`

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