document.write( "Question 1011058: . to travel from singapore to kuala lampur ,a distance kf 390km , motoridt finds that if he travels 6 km/h faster than its usual average speed,he will take 15 minutes less ti complete his usual journey . Calculate the usual avergae speed of the motorist \n" ); document.write( "

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. to travel from singapore to kuala lampur ,a distance kf 390km , motoridt finds that if he travels 6 km/h faster than its usual average speed,he will take 15 minutes less ti complete his usual journey . Calculate the usual avergae speed of the motorist
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Let usual speed be S
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document.write( "Then hypothetical speed = S + 6
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document.write( "We then get the following TIME equation: _______
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document.write( "390(4)(S + 6) = 390S(4) + S(S + 6) -------- Multiplying by LCD, 4S(S + 6)
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document.write( "Continue to solve for S, the usual speed, ignoring the negative (< 0) value for S \n" );
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