exam Maths Puzzle Numerical Ability

The speed of train A is 12 km/h slower than the speed of train B. Train A travels 230 km in the same time it takes train B to travel 290 km. Find the speed of each.

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exam Other Question

Is this rational or irrational:

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I believe this is irrational because there is no numbers involved in this, am I correct? Thank you very much! Jonathan has 136 coins in this collection of dimes and quarters. If the coins have a total value of 528, how many are dimes and how many are quarters?