exam Maths Puzzle Numerical Ability

The Nys had eight grandchildren in 2002. In 2003, they had 12 grandchildren. Find the percent increase in the number of grandchildren from 2002 to 2003.

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exam Other Question

the solution set for x+y=2 and 2x+y=3 The difference between three times a number and another number is 2. Their sum is 6. Write a system of equations. Then solve for the numbers by graphing the equations.