NCERT Solutions Ganita Prakash Chapter 10 & 260Section 10.3 Integers in Other Places — In-text Questions
Book page 259 Updated on2026-09-05
Q1.
You open a bank account with the ₹100 you had saved. Then you make ₹60 at your job the next day and you deposit it in your account. This is shown in your bank passbook as a ‘credit’. Your new bank balance is _______.
Answer
A credit is money coming in, so it is a positive number.
₹100 + ₹60 = ₹160
Answer: your new balance is ₹160.
Q2.
The next day you pay your electric bill of ₹30 using your bank account. This is shown in your bank passbook as a ‘debit’. Your bank balance is now ______.
Answer
A debit is money going out, so it is a negative number.
₹160 + (– ₹30) = ₹160 – ₹30 = ₹130
Answer: your balance is now ₹130.
Q3.
The next day you make a major purchase for your business of ₹150. Again this is shown as a debit. What is your bank balance now? ______ Is this possible?
Answer
₹130 + (– ₹150) = – ₹20
Your balance is – ₹20, that is you are ₹20 short.
Yes, this is possible. Some banks do allow the balance to go below zero for a short time — it is called an overdraft. The bank usually charges an extra amount as ‘interest’ or a ‘fee’ while the balance stays negative.
Why a negative balance makes sense: the balance is simply the total of all credits (+) and debits (–). If the debits are larger, the total lands on the other side of zero — exactly like a lift going below the ground floor.
Q4.
Your strategic large purchase the previous day allows you to make ₹200 at your business the next day. What is your balance now? ______
Answer
– ₹20 + ₹200 = ₹180
Answer: ₹180. The first ₹20 of the earning clears the negative balance and brings you to 0; the remaining ₹180 is real money in the account.
Tip: Write the whole month as one addition — 100 + 60 – 30 – 150 + 200 = 180. Credits with a +, debits with a –, and add.