book Maths Puzzle Numerical Ability

log4(2x+3)-logx=3

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1. 4a+5[1-3(2a-1)]=2(2a+5)
A roast was cooked at 325 degrees farenheit in the oven for 4 hours. The internal temperature rose from 32 degrees farenheit to 145 degrees farenheit. What was the average rise i