Dr. Sanjeev Verma and R.K. Tyagi Solutions for Chapter: Knowing Our Numbers, Exercise 5: ASSIGNMENT 1.4

A six-storey building has $36 \mathrm{m}$ height. A monkey can climb $3 \mathrm{m}$ in one jump. In how many jumps would the monkey reach at the top of the building?

The height of a particular tree is increasing at the rate of $10 \mathrm{cm}$ per month. What would be height of the tree after $5$ years if its present height is $10 \mathrm{m}$?

[Assuming the growth of the tree is uniform.]

Ramesh deposited $₹5000$ in his bank account on Tuesday and withdrew $₹2500$ on Wednesday. Next day (on Thursday), he again deposited $₹1500$. What was his balance on Thursday?

If the answer is $₹\mathrm{k}$, then find the value of $\mathrm{k}$?

A person gained $₹1000$ in one transaction and lost $₹1200$ in another transaction. Did the person gain or lose during the whole transaction and by how much?

The sum of two integers is $-250$. If one integer is $100$, find the other one.

The difference between two integers is $-25$. If one integer is $45$, find the other one.

The product of two negative integers is $400$. If one integer is $-10$, find the other integer.

An A.C. cools the room at the rate of $5°\mathrm{C}$ per hour. What would be the final temperature of the room after $6$ hours, if the initial temperature of the room is $40°\mathrm{C}$ ?