exam Maths Puzzle Numerical Ability

r=2 s=5 t=.5

Write the following algebraic expression.
Then evaluate the expression for the values given above.

t times the sum of four times s and r

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exam Other Question

The sum of 2 numbers is 36. If 3 times the smaller number is subtracted from the larger number, the result if 4. (6x^5+18x^2-24x)/18x^2