Question

find the number
(1) . 3/8 which is 30
(2). 5/6 which is 120​

Answer 1

(1) 3/8 of a number is 30.
Therefore the number = 30*8/3 = 240/3 = 80.
(2) 5/6 of a number is 120.
Therefore the number = 120*6/5 = 720/5 = 1440.

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Answer 2

(1) 3/8 of a number= 30

let number = X

3/8×X = 30

X = 30×8/3 ( 3 and 30 cancelled and got 10)

X = 10×8

X = 80

number = 80

(2) 5/6 of a number=120

let number is X

5/6×X = 120

X = 120×6/5 ( 5 and 120 cancelled got 24)

X = 24×6

X= 144

number is 144