Mathematics
Grade6
Easy
Question
What is the value of pq where a = 1, b = 2 p = 3 ________ q = 26 ?
- 73
- 78
- 75
- 30
Hint:
This is an algebraic expression. An algebraic expression consists of two components: a variable and a constant. A variable is a quantity that doesn’t have any fixed value. It takes value according to the conditions. It is denoted by the alphabet. A constant is a quantity with a fixed value. In this question, value is assigned to the variable. We have to perform the required operations and find the final value.
The correct answer is: 78
The given expression is pq.
There are two variable in the above expression. The variables are: ‘p’ and 'q'. For this question, the values of variables that are not in equation are given too. But, we have to only consider the values for the variables in the above expression.
Values assigned to the variables are 'p = 3' and 'q = 26'. We have to substitute this value and find the final value of the expression.
There is one term in the above expression. In this term, the variables p and q are multiplied with each other
We have to first substitute the value and perform the required operations.
To substitute the value, we have to replace ‘p’ by 3 and ‘q’ by 26. After substituting the value, we will get the following equation:
pq = (3)(26)
pq = 78
Therefore, the value of equation is 78
So option which is ‘78’ is the right option.
We have to be careful about the operations because of the variables. We have to follow the proper procedure for performing the operations. The variables take different values under different conditions. So we have to be careful while substituting the values. The main part of this type of question is just replacing the variables by their values and performing the operation.
