A and B take part in a 100 m race. A runs at 5 km per hour. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is

In a 100 m race, A runs at 8 kmph. If A gives B a start of 4 m and still beats him by 15 seconds, what is the speed of B?

In a 500 m race, the ratio of the speeds of two participants A and B is 3: 4. A has a start of 140 m. Then, A wins by

In a kilometer race, A beats B by 40 meters or by 5 seconds. What is the time taken by A over the course?

The given expression (11.98 * 11.98 + 11.98 * x + 0.02 * 0.02) will be a perfect square for x equal to

A box contains 2 red, 3 green, and 2 blue balls. What is the probability that none of the balls drawn is blue?