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Ques:- Find out the wrong number in the series:
789, 645, 545, 481, 440, 429, 425
789, 645, 545, 481, 440, 429, 425
A. 429
B. 440
C. 481
D. 645
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:- A 260 meter long train crosses a 120 meter long wall in 19 seconds. What is the speed of the train?
A. 27 km/hr
B. 49 km/hr
C. 72 km/hr
D. 92 km/hr