Question

one third part of a number decreased by 5 .Result is 15 find the number
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Answer 1

hope it's helpful for you

Answer 2

Step-by-step explanation:

1/3=15 so 1/5=?

If 1/3=15, then 1= 15x3=45

Hence 1=45

Replacing in the question ie:1/5

making it 45/5

which is 9.

Therefore answer is 9.

OR:

Replacing a number by any variable( in this case x) to make it more simple.

Becoming x/3=15

finding x=45 ( Same as 1= 45)

Then replace a number by 45 in 1/5 times a number.

Resulting in:

45/5= 9

Same as before where no variable has been used.