answer the question 21 21 pls help me
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5 will be the answer
chirag47:
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21.
Let length of rod be L1
Length of new rod will be 2/3 of L = 2L/3
Ratio = old length : new length = L : 2L/3 = 1 : 2/3 = 3:2
22.
Area = 14*Breadth (Given)
L - B = 9 (Given)
Area = 14B
L*B = 14B (as Area of rectangle = L*B)
B+9 = 14 (Substituting value of L from second equation)
B = 14-9 = 5cm
Let length of rod be L1
Length of new rod will be 2/3 of L = 2L/3
Ratio = old length : new length = L : 2L/3 = 1 : 2/3 = 3:2
22.
Area = 14*Breadth (Given)
L - B = 9 (Given)
Area = 14B
L*B = 14B (as Area of rectangle = L*B)
B+9 = 14 (Substituting value of L from second equation)
B = 14-9 = 5cm
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