MATHEMATICS QUESTION
TRANSLATE THIS QUESTION
A and B ran a race of 480 metre . In the first heat , A gives B a head start of 48 metre and beats him by 1 / 10 of a minute . In the second heat , A gives B a head start of 144 metre and is beaten by 1 / 30 of a minute . What is B ' s speed in m / s ?
( a ) 12
( b ) 14
( c ) 16
( d ) 18
( e ) 20
Correct Option=
