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Ques:- A man sees a train passing over a bridge 1 km long. The length of the train is half that of the bridge. If the train clears the bridge in 2 minutes, the speed of the train is
A. 30 km/hr
B. 40 km/hr
C. 45 km/hr
D. 55 km/hr
Ques:- The LCM of three different numbers is 120. Which of the following cannot be their HCF?
A. 8
B. 12
C. 24
D. 35
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
Ques:- All natural numbers and 0 are called the _____ numbers.
A. whole
B. rational
C. integer
D. prime
Ques:- If the largest three digit number is subtracted from the smallest five digit number, then the remainder is
A. 9000
B. 9001
C. 90001
D. 90007