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Maths Puzzle
Numerical Ability
2d + 24 + 3d =84
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book Other Question
How many sets of three integers are there in which the sum of the three integers does not equal three times the middle integer?
A box contains 35 machine parts, 8 of which are defective. A quality control inspector randomly selects 5 of the 35 parts for testing. What is the probablility that at least one part is defective?