exam Maths Puzzle Numerical Ability

Fm = qvBsin(theta)

solve for (v)

Can you divide Fm/qBsin(theta) to be left with just (v) on the right side?

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exam Other Question

Two trains leave the same station heading in opposite directions, each at 10 miles per hour. After 1/2 hour they each turn left and continue on at 5 miles per hour for 2 hours. At that point how far apart are they? Ted put $4000 in his savings account at Bank A. He put $6,000 in an account at Bank B that paid interest at twice the rate as Bank A. HIs total simple interest for the year was $640. What was the interest rate at each bank?