Question

Mohan deposits $₹2000$ in his bank account and withdraws$₹1642$ from it, the next day. If withdrawal of amount from the account is represented by a negative integer, then how will you represent the amount deposited? Find the balance in Mohan’s account after the withdrawal.

Answer 1

Find the balance in Mohan’s account after the withdrawal of the amount.

It is given that the withdrawal of the amount from the account is represented by a negative integer. Therefore, deposition being the reverse process of withdrawal, the amount deposited will be represented by a positive integer.

From the given details we have,

$$\begin{gathered} \mathrm{Total}\mathrm{amount}\mathrm{deposited}=+₹2000 \\ \mathrm{Total}\mathrm{amount}\mathrm{withdrawn}=-₹1642 \end{gathered}$$

Therefore,

$\begin{array}{rcl}\mathrm{Balance}\mathrm{in}\mathrm{Mohan}’\mathrm{s}\mathrm{account}\mathrm{after}\mathrm{the}\mathrm{withdrawal}& =& \left(+₹2000\right)+\left(-₹1642\right)\\ & =& ₹2000-₹1642\\ & =& ₹358\end{array}$

Hence, the amount deposited will be represented by a positive integer and the balance in Mohan’s account after the withdrawal is$\begin{array}{l}₹358\end{array}$.