answer 23 and 25 by writing on paper
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23) Let the number be x .
As per the question,
4/5 th of x -3/4 th of x = 4.
4x/5 -3x/4 =4
16x-15x = 20*4
x = 80.
So, Required number = 80.
25) Let the breadth be x.
Length will be x+5.
Now, given perimeter = 142.
As per the question,
2(x+x+5) = 142
2(2x+5)= 142
2x+5 = 71
2x = 66
x= 33.
So, Breadth and length are 33 m and 38 m respectively.
As per the question,
4/5 th of x -3/4 th of x = 4.
4x/5 -3x/4 =4
16x-15x = 20*4
x = 80.
So, Required number = 80.
25) Let the breadth be x.
Length will be x+5.
Now, given perimeter = 142.
As per the question,
2(x+x+5) = 142
2(2x+5)= 142
2x+5 = 71
2x = 66
x= 33.
So, Breadth and length are 33 m and 38 m respectively.
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