exam Maths Puzzle Numerical Ability

When 3 times a certain number N is added to 6, the sum is 20 more than the original number. What is the number N?

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exam Other Question

[ 10 5 18]
[ 4 -15 -5]
[ 1 8 0 ]

[ -7 2 -14]
[ 17 3 -13]
[ 16 15 10]





A [-30 10 -15 -
Jim earns $5.50 per hour for mowing lawns.

How much did Jim earn for working 3 hours and 45 minutes?