The HCF of two numbers is 145 and their LCM is 2175.
Question:

The HCF of two numbers is 145 and their LCM is 2175. If one number is 725, find the other.

Solution:

GIVEN: LCM and HCF of two numbers are 2175 and 145 respectively. If one number is 725

TO FIND: Other number 

We know that,

L.C.M $\times$ H.C.F $=$ First Number $\times$ Second Number

$2175 \times 145=725 \times$ Second Number

Second Number $=\frac{2175 \times 145}{725}$

Second Number $=435$

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