exam Maths Puzzle Numerical Ability

In one day, a software company sold 345 programs. The standard version sold for $19.50 each, while the deluxe version sold for $30 each. The company took in $8,334.00. How many of the standard versions of the software package were sold?

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exam Other Question

3x/ x + y - 2y/x What is the process to solve x - 2x = 15 ? Do I have to factor something?
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