Question

A man reduces his weight in the ratio 7 : 5 . What is his weight now , if originally it was 84 kg ?​

Answer 1

Answer:

(3x – 7): (4x + 3) is the sub-triplicate ratio of 8: 27

And the sub-triplicate ratio of 8: 27 = 2: 3

(3x – 7)/ (4x + 3) = 2/3

9x – 8x = 6 + 21

x = 27

Step-by-step explanation:

Answer 2

Step-by-step explanation:

let the weight will be X then,

7x+5x=84

12x=84

X=84/12

X=7

7x=7×7=49

5x=5×7=35