Maths quiz on AP (Arithmetic Progression)

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Maths quiz

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    Maths Quiz Practice Questions from Linear Equations in one Variable and Parallel Lines 1. What do we get when we transpose 5/2 to RHS in the equation x/4 + 5/2 = -3/4 ?           a. x/4 = -3/4 + 5/2          b. x/4 = -5/2 + ¾         c. x/4 = -3/4 + (-5/2)         d. none of these 2. In the equation 3x = 4-x, transposing -x to LHS we get           a. 3x - x = 4          b. 3x + x = 4         c. -3x + x = 4        d. -3x - x = 4 3. If x/3 + 1 = 7/15, then which of the following is correct?           a. x/3 = 7/15 - 1         b. x/3 = -7/15 + 1         c. x/3 = -7/15 - 1         d. none of these 4. If 7x+15 = 50, then which of the following is the root of the equation? ...
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Number system of class 9 | Number System

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NUMBER SYSTEM Even numbers:- The numbers which are the multiples of 2 or which come in the table of 2 are called even numbers eg. 2,4,6,etc Odd numbers:- The numbers which are not the multiples of 2 are called odd  numbers eg. 1,3,5,7, etc. Prime numbers:- The numbers which have only two factors are called prime numbers eg. 2, 3 ,5 ,7, 11, 13 , 17 etc. All prime numbers from 1-100 There are total 25 prime numbers from 1 to 100. These are 2 , 3 ,5 ,7 , 11 , 13 ,17, 19 , 23, 29 , 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97. Composite numbers :- The numbers which have more than two factors are called composite numbers eg. 4, 6. 8 ,9 etc. Note:-  1).  1 is neither prime nor composite. 2).  2 is only even prime number.  Co-prime Numbers :- The two numbers which do not have any common factor other than 1 are called coprime numbers.                            or  The two number...
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