book Maths Puzzle Numerical Ability

the attendance at a ball game was 400 people. Students tickets cost $2
and adult tickets cost $3. If $1050 was collected in ticket sales,how many
of each type of ticket were sold?

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book Other Question
Ken Griffey, Jr., is listed as being 6 ft. 3 inches tall and weighing 205 pounds. What is his BMI to the nearest 10th?

BMI = (weightinpunds)/(heightinches)^2 If 40rpm = 29kg How many rpm = 40 kgs

gven 29 kgs = 40 rpm therefore
1 kg = 40 divided by 29 = 40/29
40 kgs = 40/29 multiplied by 40 = 1600/29 = 55.17 kgs