Quantitative Aptitude - Arithmetic Ability Questions

Rajesh buys a table of Rs 900 and sells it. Rajesh gives two successive discount of 10% and 20% to the customer. What will be the selling price (in Rs) of the table?

If x = 1 – y and x2 = 2 – y2, then what is the value of xy?

If a = 299, b = 298, c = 297 then the value of 2a3 + 2b3 + 2c3 - 6abc is

If the selling price is doubled, the profit triples. The profit percent is

A moving train passes a platform 50m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/h) is :

In Δ ABC, the median AD is 8 cm and CB is 16 cm, measure of angle CAB is_____ .

When a number is increased by 120, it becomes 130% of itself. What is the number?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.