exam Maths Puzzle Numerical Ability

All students in a class were weighed. The average was 31.4k, with the total weight of 18,337.6k. How many students in the class?

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exam Other Question

1/5+m=-2/5 A rectangular animal pen with area 1200 m^2 has one side along a barn. The other three sides are enclosed by 100 m of fencing. Find the dimensions of the pen.