Question

2. A and B complete a 100m race in 12 seconds and 15 seconds respectively by how many meters will A defeat
B?
a) 30m b)20m c) 10m d) 15m​

Answer 1

Answer:

option b) 20

Step-by-step explanation:

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Answer 2

Answer:

= (b) 20 m

Step-by-step explanation:

Total distance = 100m

A completed 100 m in 12 seconds.

B completed 100 m in 15 seconds.

Here race is finished in 12 seconds.

So, A defeat B in X metre = {100 m - (total distance completed by B in 12

                                                 seconds)}

                                            = { 100 m - ( 100/15) ×12}

                                            = { 100 m - 80 m }

                                           = 20 m.

Therefore, option b) 20 m is correct .

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