Find the HCF of 306, 204 and 136.

For salaried parsons, standard deduction for Income tax is being raised from current Rs 40000 to Rs 50000. By how much percent standard deduction is increased ?

A man crosses a diagonal of square in two minutes at the speed of 6 km./hr. Find the area of the square-

The ratio of the area of a square to that of the square drawn on its diagonal is :

The following pie-chart shows the monthly expenditure of family on various items. If the family spends Rs. 825 on clothing answer the question

What percent of the total income does the family save 

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.

The area of two equilateral triangles are in the ratio 25 : 36 . Their altitudes will be in the ratio: 

5 men can do a piece of work in 6 days while 10 women can do it in 5 days. In how many days can 5 women and 3 men do it?