Question

The sum of digits of a two digit number is 11. If we interchange the digits then the new number formed is is 45 less than the original number. Find the original number. I will mark him/her brainliest who give correct answer with explanation.​

Answer 1

Answer:

Electrostatic Force: Electrostatic Force is a conservative force as the work done by it on a particle has no relation to the path followed and is only dependent on the initial and final position of the particle.

The force of attraction or repulsion caused due to electric charges between particles is also referred to as Electrostatic Force or Coulomb’s Force.

Electrostatic Force is also called Coulomb’s Force because the Coulomb’s Law given by French Physicist Charles-Augustin de Coulomb best explains why and how the force of attraction or repulsion between two bodies acts.

Answer 2

Step-by-step explanation:

${\bold{\sf{Equations \: that \: form \: are,}}}$

${\bold{\sf{→ \: x \: + \: y \: = \: 11 \: ... \: eq(1)}}}$

$\\ {\bold{\sf{ \: 10y \: + \: x \: = \: 10 \: x \: + \: y \: - \: 45}}}$

${\bold{\sf{9y \: - \: 9x \: = \: -45}}}$

${\bold{\sf{→ \: y \: - \: x \: = \: -45 \: ...eq(2)}}}$

$\\ {\bold{\sf{\red{Add \: both \: the \: equations, \: 1 \: and \: 2}}}}$

${\bold{\sf{(x \: + \: y \: = \: 11) \: + \: ( \: -x \: + \: y \: = \: 11)}}}$

${\bold{\sf{→ \: 2y \: = \: 6}}}$

${\bold{\sf{→ y= \: \frac{6}{2} \: = \: 3}}}$

$\\ {\bold{\sf{\red{Now \: substitute \: the \: value \: of \: y \: in \: 1st \: equation}}}}$

${\bold{\sf{→ \: x \: + \: y \: = \: 11}}}$

${\bold{\sf{→ \: x \: + \: 3 \: = \: 11}}}$

${\bold{\sf{→ \: x \: = \: 11 \: - \: 3}}}$

${\bold{\sf{→ \: x \: = \: 8}}}$

$\\ {\bold{\sf{\underline{Verifying \: the \: answer,}}}}$

${\bold{\sf{83 \: is \: original \: number \: and \: 38 \: is \: revered}}}$

${\bold{\sf{83 \: - \: 38 \: = \: 45}}}$

$\\ {\bold{\sf{\fbox{\orange{Hence the original digits are 83}}}}}$