Question

Plzz give me ans of all questions this is urgent questions plzz solve it

Answer 1

Q.1 (1) 4:8 and 1:2

$\frac{4}{8} \: and \: \frac{1}{2} \\ cross \: multipliction \\ 4 \times 2 \: = \: 8 \times 1 \\ 8 = 8 \\ the \: pair \: of \: \: ratio \: are \: in \: proportion.$
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Answer 2

Part  a) and b)  are proportional to each other .

a) 4:8 and 1:2  =    4/8  and 1/2    

                             4/8 = 1/2

                             1/2 = 1/2

    4/8 = 1/2  

therefore , 4:8 is proportional to 1:2

b) 3:5  and 15:25  =    3/5  and  15/25

                                    3/5 =3/5

                                    15/25 = 3/5

   3/5 = 15/25

therefore , 3:5 is proportional to 15:25

c) 25:30 and 40:50 = 25/30 and 40/50

                                    25/30 = 5/6

                                    40/50 = 4/5

  25/30 is not equal to 40/50

therefore , 25:30 is not proportional to 40:50

d) 44:77 and 52:91 = 44/77 and 52/91

                                  44/77 = 4/7

                                  52/91 = 52/91

 44/77 is not equal to  52/91

therefore , 44/77 is not proportional to 52/91

e) 4:5 and 6:10  =  4/5 and 6/10

                              4/5 = 4/5

                              6/10 = 3/5

6/10 is not equal to  3/5

therefore ,  6/10 is not proportional to 3/5

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