Question

A, b and c are the three contestants in one km race. If a can give b a start of 40 metres and a can give c a start of 64 metres. How many metres start can b give c?

Answer 1

Step-by-step explanation:

Race=1km=1000m

A's distance=1000m

B=1000-40=960m

C=1000-64=936m

A:B:C=1000:960:936

A:B=1000:960

A:C=1000:964

B:C=B/A × A/C =960/1000 ×1000/936=960/936

When B runs 960 m ,C runs 936m .

When B runs 1000 m,C runs:

(936/960) ×1000=975m ans