Question

The speed of a racer bike is 30% more than a normal bike. If the time taken by the racer bike to cover (3x + 46) km is equal to the time taken by the normal bike to cover (2x + 60) km. If the speed of a drone is 30 km/hr, then find the time taken by it to cover (x + 100) km.

Q: Answer-The speed of a racer bike is 30% more than a normal bike. If the time taken by the racer bike to cov...

Let the speed of normal bike be a kmhr Therefore, speed of racer bike 1.3a kmhr According to the question, 3x 461.3a 2x 60a Or, 3x 46 2.6x 78 Or, 0.4x 32 Or, x 320.4 80 Therefore, x 100 80 100 180 Required time taken 18030 6 hours

A 5.0 hours

B 7.5 hours

C 4.2 hours

D 6.4 hours

E 6.0 hours

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The speed of a racer bike is 30% more than a normal bike. If the time taken by the racer bike to cover (3x + 46) km is equal to the time taken by the normal bike to cover (2x + 60) km. If the speed of a drone is 30 km/hr, then find the time taken by it to cover (x + 100) km.

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