exam Maths Puzzle Numerical Ability

One number is 11 less than another. If 10 times the smaller number minus 3 times the larger number is 30, find the two numbers.No book. Sorry. Thankyou!!!

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exam Other Question

Multiply

8pq^2(2pq-3p+5q)

Thank you, These problems have me so confused. I have to solve this problem algebraicly to verify that these equations will produce Pythagorean Triples....

p(2n+p)squared + 2n(n+p)squared = 2n(n+p)+p squared