Question

if one-third of one -fourth of one-seventh of a number is 20, then number is?​

Answer 1

Answer:

1680

Explanation:

Let us take the unknown number as x

x/7 =y(we are going backwards as per the question)

y/4=z

z/3=20

Therefore we have to multiply 20 by (7x4x3)

We get the answer as 1680

Answer 2

Answer:

1680 is the answer for your question yes