Question

please solve this two questions for me please ​

Answer 1

Here is your answer friend.

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Answer 2

Step-by-step explanation:

31. x/2-3x/4-5x/6=21

6x-9x+10x/12=21

6x+x/12=21

7x/12=21

x= 21×12/7= 36

proof:-

= (36/2)-(3×36/4)+(5×36/6)

= (36/2)-(108/4)+(180/6)

= 18-27+30

= 21. verified

32. Ratio of the no. = 5:3 = 5x:3x

they differ by 18

therefore, 5x-3x= 18

2x= 18

x= 9

5x= 5×9 = 45

3x= 3×9 = 27 ans.