Question

Razi thinks of a number. He multiplies his number by 0.1 and then divides the answer by 0.01. Razi then divides this answer by 0.1 and gets final answer of 12500. What number does Razi Think of First

Answer 1

Penjelasan dengan langkah-langkah:

lets say that the "number" that he thinks is x

so

x.(1/10)/(1/1000)/(1/100)=12500

(x/10)/(1/100)/(1/1000)=12500

10x/(1/10)=12500

100x=12500

x=125