Question

To help farmers the State Government gave cows. Kamla Bai Gudhe also got a cow. The cost of the cow was Rs 17,500. She had to pay Rs 5,500 and the government spent the rest of the money.
• How much did the government spend on the cow?
• If 9 people from her village got cows, how much did the government spend in all?
But Kamla Bai was not happy, She had to spend Rs 85 everyday on the cow. She made some money by selling the milk. But still she wanted to sell the cow.
• If Kamla Bai spends Rs 85 a day, find out how much she will spend in one month.
• The cow gives 8 litre of milk everyday. How much will it give in one month?
• If the milk is sold at Rs 9 per litre, how much money will Kamla Bai make in one month? ___________
So the money spent on keeping the cow was Rs ___________
Money earned by selling the milk Rs ___________
Which is more — money spent on the cow or money earned form it? How much?
Explain why she wanted to sell the cow.

Answer 1

• Cost of the cow = Rs 17,500
Money spent by Kamla Bai on the cow = Rs 5,500
It is given that the rest of the money was spent by the government.
∴ Money spent by the government on the cow = Rs 17500 − 5500
= Rs 12,000
Working:



Thus, the government spent Rs 12,000 on one cow.

• Money spent by the government on 1cow = Rs 12,000
∴ Money spent by the government on 9 cows = Rs 12000 × 9
= Rs 1,08,000
Working:


Thus, the government spent Rs 1,08,000 on nine cows.

• Money spend by Kamla Bai on the cow in 1 day = Rs 85
Number of days in 1 month = 30
∴ Money spend by Kamla Bai on the cow in 30 days = Rs 85 × 30
= Rs 2,550
Working:


Thus, Kamla Bai will spend Rs 2,550 on the cow in one month.

• Amount of milk given by the cow in 1 day = 8 litre
∴ Amount of milk given by the cow in 30 days = 30 × 8 litres
= 240 litres
Working:


Thus, the cow will give 240 litres of milk in one month.

• Selling price of one litre of milk = Rs 9
We know that the cow gives 240 litres of milk in one month.
∴ Selling price of 240 litres of milk = 240 × Rs 9
= Rs 2,160
Working:



Thus, Kamla Bai will earn Rs 2,160 by selling 240 litres of milk in one month.

Money spent on keeping the cow = Rs 2,550
Money earned by selling the milk = Rs 2,160
Thus, the money spent on keeping the cow is more than the money earned by selling the milk.
Now, we will find the difference between the money spent on keeping the cow and the money earned by selling the milk.

$$\begin{gathered} \begin{array}{ccccc}& 2& \stackrel{4}{\bcancel{5}}& {}^{1}5& 0\\ -& 2& 1& 6& 0\end{array} \\ \underline{\overline{\begin{array}{ccccc}& 0& 3& 9& 0\end{array}}} \end{gathered}$$

So, the money spent on keeping the cow is Rs 390 more than the money earned by selling the milk.

She wanted to sell the cow because she had to spend more money on the cow compared to her earnings by selling the milk.