Tamil Nadu Board Solutions for Chapter: Number System, Exercise 15: Exercise 1.5

Find the amount that is left in the student's bank account, if he has made the following transactions in a month. His initial balance is $₹690$.

(i) Deposit $(+)$ of $₹485$

(ii) Withdrawal $(-)$ of $₹500$

(iii) Withdrawal $(-)$ of $₹350$

(iv) Deposit $(+)$ of $89$

(v) If another $₹300$ was withdrawn, what would be the balance be?

A poet Tamizh Nambi lost $35$ pages of his 'lyrics' when his file had got wet in the rain. If four pages contained $1800$ characters(letters), how many characters were lost?

A poet Tamizh Nambi lost $35$ pages of his 'lyrics' when his file had got wet in the rain. If Kavimaan helps Tamizh Nambi and they are able to produce $7$ pages per day, how many days will it take to recreate the work lost?

A poet Tamizh Nambi lost $35$ pages of his 'lyrics' when his file had got wet in the rain. If Tamizh Nambi pays kavimaan $₹100$ per page for his help, then how much money does Kavimaan receive (in $₹$)?

Add$2$ to me. Then multiply by $5$ and subtract $10$ and divide now by $4$ and I will give you $15$! Who am I?

Kamatchi, a fruit vendor sells $30$apples and $50$ pomegranates. If she makes a profit of $₹8$per apple and loss $₹5$ per pomegranate, what will be her overall profit (or) loss (in $₹$)?

During a drought, the water level in a dam fell $3$ inches per week for $6$ consecutive weeks. What was the change in the water level in the dam at the end of this period?

Buddha was born in $563 \mathrm{BC}\left(\mathrm{BCE}\right)$ and died in $483 \mathrm{BC}\left(\mathrm{BCE}\right)$. Was he alive in $500 \mathrm{BC}\left(\mathrm{BCE}\right)$? and find his lifetime.