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Exercise 3.2 of class 10th maths give me the all solutions |
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Answer» Given : 10 Students of CLASS X took Part in a Quiz . Number of Girls is 4 more than boys To find : number of girls & Boys Solution: Let say number of Girls = X Let say number of Boys = Y X + Y = 10 X = Y + 4 => X - Y = 4 X + Y = 10 X - Y = 4 0 10 10 0 (-4) 4 ( not POSSIBLE) 1 9 10 1 (-3) 4 ( not possible) 2 8 10 2 (-2) 4 ( not possible) 3 7 10 3 (-1) 4 ( not possible) 4 6 10 4 0 4 5 5 10 5 1 4 6 4 10 6 2 4 7 3 10 7 3 4 ( X & Y Matches) 8 2 10 8 4 4 9 1 10 9 5 4 10 0 10 10 6 4 ( 7,3) is intersection point of line Hence 7 Girls & 3 Boys Learn More: b) Draw the following pair linear equation in two variables and. solve ... The pair of equation x = –3 and y = –4 graphically represents lines ... |
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