In a class of 60 where boys are twice that of girls, Ram ranked 17th from the top. If there are 9 boys ahead of Ram, how many girls are after him in rank?

Nitin is 7 ranks ahead of Joginder in a class of 39. If Joginder's rank is 17th from the last, what is Nitin's rank from the begining?

There are 15 chairs in a row. Position of P is at the middle, Q is at 12th position counting from the right. How many chairs are there in between P and Q?

There are 15 chairs in a row. Position of P is at the middle, and Q is at 12th position counting from the right. How many chairs are there between P and Q?

In a line of boys, Satish is 12th from right and 4th from left. How many boys should be included in this line so that their total number becomes 28?

Two numbers are in the ratio 3 : 5. If each number is increased by 10, the ratio becomes 5 : 7. The numbers are