If a, b, c refer to any number and a = b,
(i) ac = bc
(ii) a + c = b + c
(iii) a – c = b - c
Which one is correct ?

Find out the value of x when 3 is added to twice x that gives a sum of 9.

In the equation 6x + 3 = 9
(i) Variable is 1
(ii) Exponent of variable is 1
(iii) Value of variable is 2
Which one is correct ?

The subtraction of two numbers is 30 and the greater number is 4 times the smaller number. What is the smaller number ?

Sum of two natural numbers is 24. If one number is 8, which one of the following is the other number ?

What is the perimeter of a rectangular garden having length of x metre and breadth of y metre ?

Bimal bought an exercise book and a pencil for 30 taka from a shop. The pencil costs x taka and exercise book costs twice the cost of the pencil. Look at the following data:
(i) Exercise book cost 3x taka.
(ii) By the question, the equation is x + 2x =30.
(iii) If the exercise book cost 20 taka, the pencil costs 10 taka.
According to the above data which one of the following is true ?

Which one of the following is the root of the equation 4x = 8 ?

Sum of two natural numbers is 24. What is the number when 4 is subtracted from it, there difference will be half of the given sum?

Amount of Mack's money is twice the amount of the Marrie's money. They have together 30 taka in total. How much money does Marie have ?