exam Maths Puzzle Numerical Ability

Abberations decreased by 92% from the first to the second sample. If only 6 abberations were noted in the second sample, how many abberations were noted in the first field sample?

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exam Other Question

Will someone please help me, the problem states to find the quotient:

-45x^3y^5/3xy^2

thank you
State the conditions for which the system below is: (a) consistent and dependent, (b) consistent and independent and (c) inconsistent.

ax + by = c
dx + ey = f