exam Maths Puzzle Numerical Ability

34-3x=14x

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exam Other Question

simplify the following expression.
squrt b^3 x ^4rt b^3.

I didn't think they could be multiplied because one is a square root and the other is a fourth root. Is it square root Jason traveled 120 miles at an average rate of speed. If he could have increased his speed 25 mph, he could have covered the same distance in 2/5 of an hour less time. How fast did he travel?