exam Maths Puzzle Numerical Ability

H is between I and J. H is the midpoint of line IJ, and IH= 0,75. Find HJ.

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exam Other Question

solve the linear system
x+y=13
x-y=5
it says draw pqr with pq=3 cm m(acute angle) p=35digrese m(acuteangle)q=70digrese