A bar of soap is placed on one of the sides of a pair of scales. On the other side there is 3/4 of a bar of the same soap and a 3/4 kg metal weight. The scales are in balance. How much does a bar of soap weigh?
Answer 3 kg
If 1/4 of the bar of soap = 3/4 kg, then you have to multiply 0.75kg*4, which is 3kg.
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