exam Maths Puzzle Numerical Ability

The cost of purchasing incandescent bulbs for use over a 9750-hour peroid is $9.75. The energy cost for incandescent bulbs over this peroid is $73. The cost of one equivalent fluor

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Three friends, Andrew, Bernard, and Claude, leave at the same time and place to go to town, 8 miles away. Andrew starts on foot. Bernard takes Claude in his car. After a certain ti Are (x - 1) and (x + 4) factors of P(x) = 2x3 + 5x2 - 13x + 4 ?