Ram sold an article for Rs 380 at some profit. Had he sold it for Rs 300, then there would have been a loss equal to one-third at the initial point. What was the cost price of the article? 

A man gives 20% of his money to his eldest son, 30% of remaining he gives to his younger son. 10% of the remaining he gives in a school for poor boys still he has Rs.100.80. Find his total sum. 

Directions : Study the following frequency polygon and answer the questions. Given a line graph showing the number of students passed in Higher Secondary Examination in a school over the years 2008 to 2013.

The increase in percentage of passed students from 2008 to 2011 approximately is 

According to the will the wealth of Rs. 21,25,000 was to be divided between the son and the daughter in the ratio $$ {7\over6}:{5\over3}$$. How much did the son get (in Rs.)?

The sum of all interior angles of a regular polygon is twice the sum of all its exterior angles.  The number of sides of the polygon is

If x+ y=90°, then what is  the value of $$ {\sqrt{cosx.cosecy-cosx.siny}}$$?

Walking at 5 km / h Harshit reaches his school from his house 15 minute early and walking at 3 km/h he is late by 9 minutes. What is the distance between his school and his house?

The following penalty diagram shows the 4 year exam results of the students of 10th standard. Study the diagram and answer the following questions.

What is the ratio of the total students who have attained second division in the year 2000 and appeared in the examination?