Direction (Q. 1-5) : In the following charts, the first pie-chart shows the percentage distribution of total students studying in different schools and the second pie-chart shows the percentage distribution of total girls students studying in these schools. (Total number of students in all the schools together is 30000 and the ratio of boys to girls is 3:2.)

What is the difference between the total number of boys and the total number of girls studying in School D ?

A person lent a certain sum of money at 8% simple interest and in eight years, the interest amounted to Rs. 635.40 less than the amount lent. What is the amount the person lent ?

The ages of three persons A, B and C are in the ratio of 4:7:14 and the ages of B, C and D are in the ratio of 2:4:5. What is the ratio of the ages of A, B, C and D ?

Population of a country increase consistently by 12% every year. If the present population of the city is 40 lakh then what will be the population of the city after three years ?

If the length of a recetangle is increased by 16 metre and the breadth is decreased by 5 metres , the area of the recentagle remains unchanged, and if the length is decreased bby eight metre and the breadth is increased by 5 metre, the area still remains unchanged. What is the area of the recentagle ?

Letters of the word SERIES are arranged in such a way that all the vowels always come together. What is the total number of ways of making such an arrangement ?