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B can run 10% faster than A. If A runs at 18 km/h, what is B's speed?

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Question: B can run 10% faster than A. If A runs at 18 km/h, what is B\'s speed?

Options:

  1. 19.8 km/h
  2. 20 km/h
  3. 17 km/h
  4. 16.2 km/h

Correct Answer: 19.8 km/h

Solution: 

B\'s speed = 18 km/h * 1.1 = 19.8 km/h.

B can run 10% faster than A. If A runs at 18 km/h, what is B's speed?

Practice Questions

Q1
B can run 10% faster than A. If A runs at 18 km/h, what is B's speed?
  1. 19.8 km/h
  2. 20 km/h
  3. 17 km/h
  4. 16.2 km/h

Questions & Step-by-Step Solutions

B can run 10% faster than A. If A runs at 18 km/h, what is B's speed?
  • Step 1: Identify A's speed, which is given as 18 km/h.
  • Step 2: Calculate 10% of A's speed. To do this, multiply A's speed by 0.10: 18 km/h * 0.10 = 1.8 km/h.
  • Step 3: Add the 10% increase to A's speed to find B's speed: 18 km/h + 1.8 km/h = 19.8 km/h.
  • Percentage Increase – Understanding how to calculate a percentage increase in speed.
  • Speed Calculation – Applying basic arithmetic to determine the new speed based on a given speed.
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