Division of Integers

In a class test $(+3)$ marks are given for every correct answer and $\left(-2\right)$ marks are given for every incorrect answer and no marks for not attempting any question. Mohini scores $-5$ marks in this test, though she has got $7$ correct answers. How many questions has she attempted incorrectly?

_____$÷\left(4\right)=-3$

Evaluate: $13÷\left[\right(-2)+1]$

Evaluate: $(-31)÷\left[\right(-30)+(-1\left)\right]$

Evaluate: $\left[\right(-36)÷12]÷3$
 

Evaluate: $0÷(-12)$

Evaluate: $(-49)÷\left(49\right)$

$\left(-36\right)÷\left(-9\right)=$?

_____$\times (-12)=132$

Replace the blank with an integer to make it a true statement.

_____ $\times (-8)=-56$

Replace the blank with an integer to make it a true statement.

$5\times$ _____ $=-35$

Replace the blank with an integer to make it a true statement.

$(-3)\times$ _____ $=27$

An elevator descends into a mine shaft at the rate of $6$ $\mathrm{m}/\min$. If the descent starts from $10$ $\mathrm{m}$ above the ground level, how long will it take to reach $-350 \mathrm{m}$.

In a class test $(+3)$ marks are given for every correct answer and $\left(-2\right)$ marks are given for every incorrect answer and no marks for not attempting any question. Radhika scored $20$ marks. If she has got $12$ correct answers, how many questions has she attempted incorrectly?

The temperature at $12$ noon was $10°\mathrm{C}$ above zero. If it decreases at the rate of $2°\mathrm{C}$ per hour until midnight, at what time would the temperature be $8°\mathrm{C}$ below zero? What would be the temperature at mid-night?

Write five pairs of integers $(\mathrm{a},\mathrm{}\mathrm{b})$ such that $\mathrm{a}÷\mathrm{b}=-3.$ One such pair is $(6,\mathrm{}-2)$ because $6÷(-2)=(-3)$.