1.The weights(重量) of two boys are in the ratio 5:4.If the we
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1.The weights(重量) of two boys are in the ratio 5:4.If the weight of the thinner boy is 48kg,what is the weihgt of the other?
2.The lengths(长度) of two rivers are in the ratio 12:7.The length of the longer one is 42km.Find the length of the shorter one.
2.The lengths(长度) of two rivers are in the ratio 12:7.The length of the longer one is 42km.Find the length of the shorter one.
48/4*5=60kg
42/12*7=24.5km
42/12*7=24.5km
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