exam Maths Puzzle Numerical Ability

A map has a scale of 1 centimeter : 8 kilometers. Use the given actual distance to find the distance on the map.

29. 176 km

Any help with this equation would be Greatly</b> appreciated.

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exam Other Question

(m^2-5mn + 3n^2)(m^2+4mn - 2n^2)

Please help me solve this. What amount of each mixture, one 95% alcohol and the other 15% alcohol, must be used to make 10 liters of a mixture which is 45% alcohol? What equations will express this problem?