Multiplication and Division Basics

Multiplication is ‘Repeated Addition’ of ‘one number’ the ‘other number’ of times.

x*y = x+x+x+..... ‘y’ times

Division is ‘Repeated Subtraction’ of second number from the first one, till the answer becomes less than the second number.

x/y = x-y-y-y-.... till the answer becomes less than ‘y’. Here the final answer what we get is called the ‘Remainder’ of the division. And the number of times subtraction is carried out is called the ‘Quotient’ of the division. Here ‘x’ is called the ‘Dividend’ and ‘y’ is called the ‘Divisor’.

Numbers-26 (MPMET-2008)

Consider four digit numbers for which the first and third digits are equal and the second and last digits are equal. How many such numbers are perfect squares?

(A)0     (B)4     (C)1     (D)2

Click on comments to enter your answer:

Probability-12 (MPMET-2008)

What is the probability of getting exactly 60 marks in a paper of 100 marks?

(A)60/100      (B)1/100         (C)1/101         (D)60/101

Click on comments to enter your answer:

Geometry - 20

If the lengths of diagonals DF, AG and CE of the cube shown in the adjoining figure are equal to the three sides of a triangle, then the radius of the circle circumscribing that triangle will be:

(1) Equal to the side of the cube     (2) √3 times the side of the cube   

(3) 1/√3 times the side of the cube           

(4) Impossible to find out from the given information

To enter your answers, click on comments below: