The cost of 50 grams of cotton candy is Rs.20. Complete the following table based on this data if weight is directly proportional to price.

$\begin{matrix} W e i g h t o f c o t t o n c a n d y (I n g r a m s) & 50 & 150 & 210 P r i c e i n r u p e e s & 20 & 80 & 72 \end{matrix}$ [3 MARKS]

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Solution

Solution: 3 Marks

As the weight and price are in direct proportion, $\frac{w e i g h t}{p r i c e}$ will be a constant.

Hence $\frac{w e i g h t}{p r i c e} = \frac{5}{2}$ for each case.

So, based on this, the table can be filled as follows.

$\begin{matrix} W e i g h t o f c o t t o n c a n d y (I n g r a m s) & 50 & 150 & 200 & 180 & 210 P r i c e i n r u p e e s & 20 & 60 & 80 & 72 & 84 \end{matrix}$

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The cost of 50 grams of cotton candy is Rs.20. Complete the following table based on this data if weight is directly proportional to price. Weight of cotton candy(In grams)50150210Price in rupees208072 [3 MARKS]

Solution: 3 Marks As the weight and price are in direct proportion, weightprice will be a constant. Hence weightprice=52 for each case. So, based on this, the table can be filled as follows. Weight of cotton candy(In grams)50150200180210Price in rupees2060807284

The cost of 50 grams of cotton candy is Rs.20. Complete the following table based on this data if weight is directly proportional to price.

$\begin{matrix} W e i g h t o f c o t t o n c a n d y (I n g r a m s) & 50 & 150 & 210 P r i c e i n r u p e e s & 20 & 80 & 72 \end{matrix}$ [3 MARKS]