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प्रश्न
The length and breadth of a rectangular field are in the ratio 5 : 4. If the width of the field is 36 m, what is its length?
विकल्प
40 m
45 m
54 m
50 m
उत्तर
45 m
Length:Breadth = 5:4
Let x be any number such that the length and the breadth are 5x and 4x, respectively.
Now , 4x= 36
x = `36/4` = 9
Length = 5x = 5 × 9 = 45 m
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