A man walks a certain distance and rides back in 4 hours 30 minutes. he could ride both ways in 3 hours. The time required by the man to walk both ways is 

The value of $$(x^{b+c})^{b-c}. (x^{c+a})^{c-a}.(x^{a+b})^{a-b}$$ when (x≠0).

A shopkeeper marked the price of an article by 40% above cost price and gave discount of Rs. 224. On the final amount, he charged 10% tax. In the whole transaction, he earned Rs. 158.6. Find cost price of the article.

The Garibrath express can move at 45 km./hr. without its rake and the speed is diminished by a constant that varies as the square root of the number of wagons attached. If it is known that with 9 wagons, the speed is 30 km./hr., what is the greatest number of wagons with which the train can just move?

Directions : What will come in the place of the question mark (?) in the following number series?

100 100   50  150  37.5 ?

A worker suffers a 20% cut in his wage. He may regain his original wages by obtaining a rise of how much %?

Find the inner surface area of all walls of a rectangular room with length 7 m breadth 5 m and height 3.5 m -  

A mother is 28 years older than twice the age of her son. Five years later, the mother will be 10 years older than thrice the age of her son. What is mother’s present age?