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the combined ages of reena ,seena are 44 yrs and reena is twic as old as seena was when reena was half the as old seena will be when seena is three times as old as reena was when reena was 3 times as old as seena. How old is reena???

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A says if 75 chickens are sold from what we have now the feed will last for extra 20 days. But B says if we buy additional 100 chickens then feed will get over 15 days earlier. Find the No. of chickens both are having now? Hawkeye Foodlemyer is firing a rifle at a paper target 500m away. The target is 10cm square, and each bullet hole is circular, 1cm in diameter. The bullet holes are uniformly distributed in the target area, and none extend beyond the boundary.
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