exam
Maths Puzzle
Numerical Ability
determine value "a" such that the lines 3x-4y=12 and ax+6y=-9 are parallel
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exam Other Question
7x^-8 * 6x^3
The attendance at a concert was 1250. Admission was $20 each for adults and $10 each for children. Total receipts were $22,500. How many adults attended?
a) 750
b) 500
c) 250
d) 1000
e) none of the above