exam Maths Puzzle Numerical Ability

3 letters and three numbers how many different posiabilities?


ask 3 strangers what there b-day is
how many on Wednesday
how many on different day of week
non born on saturday

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exam Other Question
Solve system by elimination
2/3x-3y=1/5
2x-9y=4 tring to find out the angle of this triangle. one leg is 75.69, and the hypoteneuse is 94.154. i need to know what the angle of the other corner is.