JUNIOR
EMPLOYMENT OFFICER,NATIONAL EMPLOYMENT SERVICES(KERALA)/ASSISTANT JAILOR GRADE
I,JAIL
EXAM
DATE:20-05-2017
Choose the
correct answer from the four options A,B,C,D given in brackets.
1.A and B
are two cities.A man travels from A to B at a speed of 10 km/hr and returns
back at the speed of 30 km/hr.Find his average speed for whole journey.
A.12 km/hr
B.15 km/hr
C.20 km/hr
D.22.5 km/hr
Ans:B
