exam Maths Puzzle Numerical Ability

i dont get any of it and i think i should chengeto regular 7th grade math instead in stead of skipping.

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exam Other Question

A field is in the shape of a rectangle.The ratio
of the length of the field to its width is 3 to 2. If the
perimeter of the field is 190 yards, what is the demensions
of the field?
fiND FOUR CONSECUTIVE INTEGERS WHOSE SUM IS 244