exam Maths Puzzle Numerical Ability

How many ways can 4 geometry books and 3 algebra books be arranged ina row if the geometry books must be kept together and the algebra books must be kept together?

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exam Other Question

Divide. Use synthetic division if possible
(8x^4+5x^3+4x^2-x+7)/(x+1)
(12x^3+31x^2-17x-6)/(x+3)

i need some major help with these 2 questions. i was given 110 questions, i need some help with these 2=/ Pump A can unload a tanker in 15 hours, Pump B can unload the same tanker in 25 hours. Because of an approaching storm, both pumps are used to empty the tanker. If the pumps begin at 2:30 a.m., what time will the job be complete?