Question

किसी दिन में अंश को 20 % तथा हर को 25 परसेंट बढ़ा दिया जाता है तो भिन्न 3/5 हो जाता है​

Answer 1

Answer:

5/8

Step-by-step explanation:

let fraction = x/y

20 % of x = 20x/100 = x/5

25 % of y = 25y/100 = y/4

from question,

{x+(x/5)} / {y+(y/4)} = 3/5

({5x+x)/5} / {(4y+y)/4} = 3/5

(6x/5) / (5y/4) = 3/5

(6x/5) X (4/5y) = 3/5

x/y = (3/5) X (25/24)

x/y = 5/8

There is also another way of solving this.

Let's assume fraction is 100x/100y increasing 20%x and 25% y, it becomes

120x/125y = 3/5

x/y = (3/5) X (125/120)

x/y = 5/8