exam Maths Puzzle Numerical Ability

Change the following percent to a fraction
51%
My guess here is 51/100 is this right?

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exam Other Question

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 equation or equations will express this problem? I was thinking it would be this equation: 0.95x+0.15x=0.45 Mrs. Javier boarded a bus bound for bagio at exactly 4 a.m. one and one-half hours later, her husband followed driving the family car at 75km. per hour. Assuming that the bus was t