Quantitative Aptitude - Arithmetic Ability Questions

In an isosceles triangle ABC, AB = AC and ∠A = 80°. The bisector of ∠B and ∠C meet at D. The ∠BDC is equal to

A car takes 5 hours to cover 100 kms distance at a particular speed whereas another car takes 3 hours to reach a particular distance at the same speed. Find the distance.

Two trains are moving in opposite directions with the same speed. If the length of each train is 144 metres and they cross each other in 9 seconds, then what is the speed (in km/hr) of each train?

What is the curved surface area (in cm²) of a hemisphere of diameter 42 cm?

If O is the centroid and AD, BE and CF are the three medians of Δ ABC with an area of 96 cm2 then the area of Δ BOD in cm2 is

97 x 97 = ?

If two complimentary angles are in the ratio of 11 : 7, find the smaller angle.

If triangle ABC = triangle XYZ and angle BAC = 55 deg, then angle ZXY = ?