2. Number of students of Class-V and VI who participated in "SAVE ENVIRONMENT" campaign is given by the expression (2pq + 3p2 + 2q?) and (4p2 + + 3pq) respectively. (a) If p = 2, 9 = 5, find how many more students of Class-V participated in the campaign.
Answers
Answer:
The expression for Class - V students who participated in the campaign is given by
To determine the number of students participated from Class - V, let us substitute and in the expression , we have,
Simplifying, we have,
Multiplying the terms within the bracket, we get,
Adding all the values, we get,
Thus, the number of students of Class - V participated in the campaign are 42 students.
Step-by-step explanation:
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Answer:
11 more students of Class-V participated in the campaign.
Step-by-step explanation:
Number of students of class- V= 2pq + 3p2+2q2
Put p = 2 & q = 5 in above expression,
= 2(2)(5) + 3 (2)2+2(5)2
= 20 + 3 X 4 + 2 X 25
= 20 + 12 + 50
= 82
Number of students of class-VI = 4p2+q2+3pq
Put p = 2 & q = 5 in above expression,
= 4(2)2+(5)2+3(2)(5)
= 4X4 + 25 + 30
= 16 + 25 + 30
= 71
Required Difference = 82 - 71 = 11
11 more students of Class-V participated in the campaign.