Two students while solving a quadratic equation in x, one copied the constant term incorrectly and got the roots as 9 and 10. The other copied the coefficient of x incorrectly and got roots as 4 and 5 respectively. The correct root(s) is/are (Assume the leading coefficient of the quadratic equation as 1)
Hokona loves to play with building blocks. She has building blocks in the shape of a cube. The shape and size of all the blocks are the same. Each edge of the block has a length of 4cm. This time Hokona tries to form columns by placing the blocks one over the other. She places the blocks in such a way that there is always a block less in the consecutive column. If she starts with 9 blocks in the first column then what is the volume of the resultant figure?
A bag contains 4 red balls and some blue balls. If the probability of drawing a blue ball from the bag is five times that of a red ball, find the number of blue balls in the bag.
Following chart shows number of students in a school who got distinction in one of three subjects. Find the number of students who got distinction in Physics and English.
Faces of a cube are marked with A,B,C,D,E and F. Two views of the cube are as shown below, if face A is opposite to face D, what will be there on the face opposite to face B?