exam
Maths Puzzle
Numerical Ability
If 10 pens and 15 markers cost $26, and 5 of the same pens and 10 of the same markers cost $16, find the cost of a pen.
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exam Other Question
Solve by elimination:
2x+3y=21
5x-2y=-14
There are 13 members on a board of directors. If they must form a subcommittee of 6 members,how many different subcommittees are possible?