exam Maths Puzzle Numerical Ability

Twenty years ago Horace was one fifth as old as he is now. How old is he now?

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exam Other Question

An issocles triagle had a perimeter of 370mm.the base of the triangle is 40mm longer than the two equal side.What is the length of each side. Find the slope of the graph of the linear function.

f(2)=4, f(0)=6