exam Maths Puzzle Numerical Ability

(6x-32)+(2x-20)= 180

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exam Other Question

give a counter example that demonstrates that the converse of the statement is false.

if an angle measures 94 degrees then it is obtuse Joe has a collection of nickels and dimes that is worth $6.00. If the number of dimes were doubled and the number of nickels were increased by 6, the value of the coins would be $9.90. How many dimes does he have?