In a 100 m race, A beats B by 10 m and B beats C by 10 m. By what distance does A beat C (in m)?
Answer & explanation
Correct answer: option 1
According to the question,
A = B + 10,
B = C + 10,
Therefore A : B : C
10 : 9
: 10 : 9
100 : 90 : 81
⇒ The distance by which A beat C = 100 - 81 = 19m.