One fifth of the difference of a number and 1.

The one-fifth of the difference of a number and 1 is :

Explanation:

Given:

Any arbitrary number.

To find:

One-fifth of the difference of number and 1.

Solution:

Let the number be N.

The term 'difference' simply means to subtract.

The difference between number 'N' and 1 will be:

= N-1

One-fifth of the difference between number 'N' and 1 will be determined by multiplying the difference by 1/5:

The one-fifth of the difference of a number and 1 is :

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Explanation:

n = number

So the difference is just (n-1) of is another way of saying multiply that means we would multiply (n-1)1/5

Hope that helps and have a great day!

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.