One tenth of a number is two less than one seventh of its predecessor.

1.	One tenth of a number is two less than one seventh of its predecessor. Find the number.
Answer» Step-by-step EXPLANATION: To Find :The number Solution : Let The number = n So, One-tenth of number n = × n Now, The PREDECESSOR of number n = n - 1 So, One-seventh of number ( n -1 ) = × ( n - 1 ) ACCORDING to question one tenth of a number = 1 seventh of its predecessor - 2 i.e = - 2 Solving this equation or, By cross multiplication 7 n = 10 ( n - 15 ) i.e number = n = 50 Hence, The number is 50

One tenth of a number is two less than one seventh of its predecessor. Find the number.

Answer»

Step-by-step EXPLANATION:

To Find :The number

Solution :

Let The number = n

So, One-tenth of number n = × n

Now,

The PREDECESSOR of number n = n - 1

So, One-seventh of number ( n -1 ) = × ( n - 1 )

ACCORDING to question

one tenth of a number = 1 seventh of its predecessor - 2

i.e = - 2

Solving this equation

or,

By cross multiplication

7 n = 10 ( n - 15 )

i.e number = n = 50

Hence, The number is 50