Ques:- The HCF of two numbers is 11 and their LCM is 7700. If one of these numbers is 275, then the other one is
A. 918
B. 308
C. 283
D. 279
Ques:- Two trains are coming from opposite directions with speeds of 75 km/hr and 100 km/hr on two parallel tracks. At some moment the distance between them is 100 km. After T hours, distance between them is again 100 km. T is equal to
A. 1 hr
B. $$1{1} / {7}$$
C. $$1{1} / {2}$$
D. 2 hrs