Quantitative Aptitude - Arithmetic Ability Questions

Find the smallest 8 digit number which is exactly divisible by 121.

4 hrs after a goods train passed a station, another train travelling at a speed of 60 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 8 hours. What is the speed of the goods train?

What is the slope of the line parallel to the line passing through the points (-2, -1) and (4, -3)?

What is the measure of an exterior angle of a regular polygon of 10 sides?

The point P(a,b) is first reflected in origin to P1 and P1 is reflected in y-­axis to (6,­-5). The co-­ordinates of point P are

In the following question, select the odd letter/letters from the given alternatives.

If ax + by = 1 and bx + ay = 2aba2+b2 then x2+y2a2+b2 is equal to

A 1.6 m tall observer is 45 meters away from a tower. The angle of elevation from his eye to the top of the tower is 30°, then the height of the tower in meters is