exam Maths Puzzle Numerical Ability

The difference of two numbers is 33. The second is 7 less than 3 times the first. What are the two numbers?

I think the answers are 20 and 53, but I am getting confused...Can you help?

Thanks

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exam Other Question

find three consecutive integers such that 3 times the sqaure of the first exceeds the product of the other two by 25 Do I divide the circumference of a circle by four to get the perimeter of a quadrant?