Last year Firoza was present in school for x days. Firoza's friend Mohini was present for (3x+13) days. Findout last year how many days was Mohini present in school more than Firoz.

My present age is 11 yrs 7 month 10 days. Let me calculate, after how many years I shall be eligible to cast my vote.

In a ship, there were stored food for 50 sailors for 16 days. After 10 days 10 more saliors joined them. Let's find, for how many days the remaining food would last.

If the distance of the earth from the sun suddenly decreases to half its present value, then how many days will make a year ?

Today is the Foundation day of our school. Each student of class five will be given pencil and eraser worth 5 rupees. Each student of class six will be given compass worth of 10 rupees. There are x students present in class five, but number of students present in class six is 8 less than the number present in class five. Calculate the amount of money spent for pencils and erasers and also the amount spent for compasses.

The ratio of boys and girls in Suchitra's class is 4 : 3 . If the total number of students in class is 63, find the number of boys and girls in the class. After a few days 3 more girls joined the class. Calculate the present ratio of boys and girls in Suchitra's class.

If the mass and the radius of the earth suddenly reduce to half their present values, (ii) how many days will constitute a year ?

The population of a city was 800000 before 3 years. If the population of the city increases by 5%, 6% and 7% in the last 3 years, then what is the present population of the city?

As a result of sarba Siksha Abhiyan, the students leaving the school before completion, the students are readmitted, so the students in a year is increased by 5% in comparison to its previous year. If the number of such readmitted students in a district be 3,528 in the present year, then find the number of students readmitted 2 year before in this manner.

Out of whole day meal, how much proportion of protein and calorie should be present in a school tiffin?

What are the difference of present day climate with that of 20 years earlier?