Question

fourth-fifth of a number is greater than three fourths of the number by 4 .The number is
i)12
ii)64
iii)80
iv) 102
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Answer 1

Answer:  80

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Step-by-step explanation:

Four fifth of a number is greater than three three fourth of the number by 4. What is the number?

Let the number = x, then

4x/5 =(15x/4) + 4

16x = 75x + 80

-59x = 80,

Answer 2

Answer:

iii) 80

Step-by-step explanation:

In equation form

4x/5 = 3x/4 + 4

4x/5 - 3x/4 = 4

Since 20 is LCM

16x - 15x/ 20 = 4

x/20 = 4

x = 4 * 20 = 80

Hence the answer is iii) 80