Question

Four-fifths of a number is greater than three fourth of the number by 4. Find the value of thrice a number.

Answer 1

Step-by-step explanation:

Let the number be n

4/5(n)=3/4(n)+4

4/5(n)-3/4(n)=4

1/20(n)=4

n=20×4

n=80

Answer 2

Step-by-step explanation:

Let the number be X

According to Question,

4X/5 = 3X/4 + 4

4X/5 - 3X/4 = 4

(16X-15X)/20 = 4

X = 4×20 = 80 (Ans.)

Second Method,

4/5 = 80%

3/4 = 75%

80% - 75% = 5%

5% = 4

THEN,

100% = 4×20 = 80 (Ans.)