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Finding Square Of Any Number Ending With 5

S
Siddhartha Singh Chandel
30/06/2017 0 1

Finding square ending with 5

For e.g. 35

The answer come in two parts:

LHS= the digit before 5 (i.e. 3 ) is multiplied by its next consecutive digit 4,

i.e. 3x4=12

RHS= as the number ends in 5, so

5 x 2=25

35 x 2= 1225.

Again lets say,

75 x 2= 7x8/5 x 2 = 5625

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Hina | 07/07/2017

nice info sir

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