A box contains 6 red pens, 5 greens pens and 4 white pens. A ball is drawn at random from the box. What is the probability that the pen drawn is either red or green?

5 years ago the age of my father was three times the age of mine and after 5 years the age of my father becomes two times the age of my elder brother. The difference between the age of my elder brother and my age is 3 years. What is my present age ?

The average marks in Mathematics subject of a class of 25 students is 70. If the marks of four students were misread as 36, 48, 54 and 65 instead of actual marks 63, 84, 45 and 56 respectively, then what would be the correct average ?

What should come in place of question mark (?) in the following questions?

245 ÷ 25 x 115% of 300 - 450 = ?

What should come in place of question mark (?) in the following questions?

What should come in place of question mark (?) in the following questions?

What should come in place of question mark (?) in the following questions?

114² + 112² = ?² − 60

In the given questions, two quantities are given, one as ‘Quantity I’ and another as ‘Quantity II’. You have to determine relationship between two quantities and choose the appropriate option: 

Quantity I: A sum of Rs 8280 is divided among A, B and C such that A receives 20% more than C and C receives 20% less than B. What is A's share in that amount?

Quantity II: A Rs 17280 divided among A, B and C in the ratio . Amount received by A was:

In the given questions, two quantities are given, one as ‘Quantity I’ and another as ‘Quantity II’. You have to determine relationship between two quantities and choose the appropriate option: 

Quantity I: A bag contains 5 red, x green and 3 blue balls. If a ball is drawn randomly then the probability of ball getting green is 1/3 . Find the value of x. 

Quantity II: A bag contains 7 red, 5 green and x blue balls. If a ball is drawn randomly then the probability of ball getting blue is 1/4 . Find the value of x.

In the given questions, two quantities are given, one as ‘Quantity I’ and another as ‘Quantity II’. You have to determine relationship between two quantities and choose the appropriate option: 

Quantity I: What is the rate of simple interest, if after 2 years the sum becomes Rs 600 and after 9 years becomes Rs 810? 

Quantity II: Rs 12400 becomes Rs 13671 in two years at the rate of compound interest. Find the rate of interest.