exam
Maths Puzzle
Numerical Ability
How many 6 digit numbers can be made with any combination and permutation of 3 and 7? (e.g. 377777, 737777, 777333, 733733, 333337)
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exam Other Question
solve using long division
(x^3+4x^2-3x-12) divided by (x^2-3)
Use substitution to solve the system {y = 2-x/2
{x^2+4y = 8