I thought of a number, subtracted it from 6 1/4 , multiplied the difference by 1 2/3 and then by 2 4/5 . The result was the same as the result of division of 146 by 5 3/14 . What was my number?

The number was 1/4

Step-by-step explanation:

Let the

number be x

from the question, we have

6 1/4 - x

multiplied difference;

(6 1/4 - x) 1 2/3

The

next multiplication will give;

1 2/3 * 2 4/5

= 5/3 * 14/5 = 14/3

So we have;

(6 1/4 - x) 14/3

Result is same as:

146 divided by 5 3/14

= 146 * 14/73 = 28

Thus;

(61/4 - x) * 14/3 = 28

(25/4 - x) * 1/3 = 28/14

(25/4 - x) * 1/3 = 2

(25-4x)/4 = 6

25-4x = 6(4)

25-4x = 24

25-24 = 4x

4x = 1

x = 1/4

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this