book Maths Puzzle Numerical Ability

A mixture of 12 liters of chemical A, 16 liters of chemical B, and 26 liters of chemical C is required to kill a destructive crop insect. Commercial spray X contains 1, 2, and 2 pa

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book Other Question

Bobby and Rick are in a 10-lap race on a one-mile track. Bobby, averaging 90mph, has completed two laps just as Rick is getting his car onto the track. What speed does Rick have to average to be even with Bobby at the end of the tenth lap? On a fishing trip, Mariko caught twenty-four fish. Sh caught some rockfish averaging 2.5 lb. and some bluefish averging 8 lb. The total weight of the fish was 137 lb. How many of each kind of fish did she catch?