exam Maths Puzzle Numerical Ability

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Calculate the simple interest rate. P=$4,000, I=$190, t= 6 months

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exam Other Question

Mr. Santos traveled for 2 hours at a constant speed. Because of patholes, he reduce his speed by 7 km per hour for the next 2 hours. if he traveled 206 km, what was his speed on the first part of the trip? Solve the system by addition. -4x - 7y = -1, x - 3y = 5