Ganesh and Dinga want to pack $4000$ centimetre cubes in boxes. These are to be sent to a school. There are three different boxes available for packing.

 

 ❈ What is your guess? Who is right?

❈ How can Ganesh and Dinga test their guesses before packing the cubes in the boxes? 

Use Ganesh's method and write:

 ❈ _____ centimetre cubes can be arranged in box B.

 ❈ _____ centimetre cubes can be arranged in box C

  ❈ So _____centimetrecubes in all can be packed in the three boxes

Trek to Gangotri

The students of class XII are going on a trek to Gangotri. They have to pack their bags for six days and keep them light. They also have to take things that do not take too much space. So they will look for things that have both less volume and less weight. After all, they will carry their own bags while climbing the mountains!

They even dry the onions and tomatoes to make them light. One Kg of onions or tomatoes becomes $100$ g when the water inside dries up.

The list of food each person will need for one day:

Rice $=100 \mathrm{g}$

Flour (Atta) $=100 \mathrm{g}$

Pulses (Dal) $=\frac{1}{3}$ the weight of rice and flour

Oil $=50 \mathrm{g}$

Sugar $=50 \mathrm{g}$

Milk Powder $=40 \mathrm{g}$ (For tea, porridge and hot drink)

Tea $=$ Around $10 \mathrm{g}$

Dalia $=40 \mathrm{g}$ for breakfast

Salt $=5 \mathrm{g}$

Dried onions $=10 \mathrm{g}$

Dried tomatoes $=10 \mathrm{g}$

For $6$ days each person will need,

Rice and Flour - _____ g? Pulses - _____ g ?

Dried onions - _____ g?

What is the total weight of food $($for $6$ days$)$ in each person's bag?

If the total weight is $x \mathrm{g}$ find the value of $x$? 

Guess how many children will be equal in the weight of an elephant of $5000 \mathrm{kgs} ?$

$($Take the weight of the children as $40 \mathrm{kg}.$$)$ 

At birth, a baby elephant weighs around $90 \mathrm{kg}$ and the weight when you born is $3$ kg? Find out. How many times is a baby elephant heavier than you were at birth?

If a grown-up elephant eats $136 \mathrm{kgs}$ of food in a day, then it will eat around _____ $\mathrm{Kg}$ in a month.

Guess about how much it will eat in a year$(1 \mathrm{year}=365 \mathrm{days})$.