exam Maths Puzzle Numerical Ability

Divide. Simplify if possible.

12x-12/3 (dived) 4x-4/21

A)1/21 B)48(x-1)^2/63 C)7(12x-12)/4x-4 D)21

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exam Other Question

Diep left alone for a bike ride at 8:00 AM, traveling at 20 MPH. Half an hour later, Mai noticed that Diep had left her water bottle at home. If Mai rides 40 MPH, how long will it take her to catch up to Diep? three times a number is 18 less than the number