RRB Government Jobs Exams

The sum of all two-digit numbers is
Answer : 4905

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RRB Other Question

How many seconds will it take for a train 100 meters long moving at the rate of 15 m/sec to overtake another train 80 m long running from the opposite side at the rate of 90 km/hr? The angles of a triangle are in the ratio 1 : 2 : 3, then the smallest angle is