Manisha Paul Solutions for Chapter: Integers, Exercise 7: Worksheet - 37

On $1^{\mathrm{st}}$ January, the minimum temperature in Srinagar was $-{10}^{\mathrm{o}}\mathrm{C}$. On $1^{\mathrm{st}}$ February, the minimum temperature was $-5^{\mathrm{o}}\mathrm{C}$, by how many degrees did the minimum temperature rise in the month?

The philosopher, Plato was born in $429 \mathrm{B}.\mathrm{C}.$ He died in $348 \mathrm{B}.\mathrm{C}.$ How many years did Plato live?

An adventure was planned to climb to a point $\text{'}x\text{'}, 4500$ metres above sea-level on a mountain. Another undersea adventure was planned at point $\text{'}y\text{'}, 2750$ metres below the sea level. What is the vertical distance between points $\text{'}x\text{'}$ and $\text{'}y\text{'}$?

At $12.00$ noon, the temperature in Delhi was ${25}^{\mathrm{o}}\mathrm{C}$. Thereafter, the hourly increase/decrease of temperature was recorded as under:

What was the temperature in Delhi at $4.00 \mathrm{p}.\mathrm{m}.$?

An aeroplane is flying at a height of $2000 \mathrm{m}$ above the sea level. A submarine is moving at a depth of eight hundred metres below sea level position exactly below the aeroplane. If the aeroplane descends $500 \mathrm{m}$ and the submarine ascends hundred metres, what is the vertical distance between the two?