Quantitative Aptitude - Arithmetic Ability Questions

Two trains move from stations M and N. Both trains move towards each other at speeds of 54 km/hr and 63 km/hr respectively. When they meeteach other, the second train has travel 100 km more than the first. What is the distance (in km) between M and N

A card is drawn from a pack of 52 cards. What is the probability that either card is black or a king? 

Selling price of a glass is Rs 1965 and loss percentage is 25%. If selling price is Rs 3013, then what will be the profit percentage?

A man travels 404 kilometres in partly by rail and steamer. He spends 10 hours more time on steamer. If the speed of the steamer is 30 km/hr and the velocity of rail is 50 km/hr, how much distance does he cover by steamer?

If 35% of A's income is equal to 25% of B's income, then the ratio of A's income to B's income is

If a = √2 + 1, b = √2 - 1 then the value of 1a+1+1b+1 ?

If x +y = √3 and x - y = √2, then the value of 8xy (x2 + y2) is

The marked price of a chair is Rs 550 and a discount of 20% is given on it. What is the selling price (in Rs)?