By what number should $\left(-30\right)$ be divided so that the quotient is $\left(-5\right)$?

Subtract the sum of $\left(-50\right)$ and $\left(-3\right)$ from the sum of $\left(-20\right)$ and $\left(7\right)$.

What should be subtracted from $50$ to get $-90$?

Which one is greater?

$\left(9+8\right)\times 100 \left(\text{or}\right) 9+8\times 100$

Write a pair of negative integers such that the larger integer is greater than the smaller by $8$.

In a multiple choice question paper, $4$ marks are awarded for every correct answer, $2$ marks are deducted for every wrong answer and no marks awarded if a question is not attempted. Sudeep scored $40$. If he got $16$ correct answers and did not attempt $2$ questions, how many questions are there in the paper?

Rohit deposited $₹5,000$ in his bank account on $1^{\mathrm{st}} \mathrm{January}, 2022$. He withdrew $₹1,950$ in February and started a business. he made a profit of $₹550$ and deposited it in the account in March. At the end of March, he withdrew $₹3,000$ and invested in the business, but in April he deposited his profit of $₹1000$ in the account. What was the balance in the account at the end of April?