Question

If 42 kg of wheat cost Rs 840 , find the cost of 1 quintal ( = 100 kg ) of wheat ? ​

Answer 1

Answer:

2000/-

Step-by-step explanation:

840/42 = 20

20 * 100

= 2000

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Answer 2

Answer:

• Cost of 100 kg of wheat = ₹2000

Step-by-step explanation:

Given

• 42 kg of wheat costs ₹840

To Find

• Cost of 1 quintal (100kg ) of wheat

Solution

• Let's assume the cost of 100 kg of wheat be x

• 42 kg of wheat cost ₹840

• 100kg cost ₹ x.

• 42 $\longrightarrow$ 840

• 100 $\longrightarrow$ x

• Now, do cross multiplication

• $\tt 42x = 840 × 100$

• $\tt x = \dfrac{840 \times 100}{42}$

• $\tt x = \cancel\dfrac{840 \times 100}{42}$

• $\tt x = 20 \times 100$

• x = ₹ 2000

So, cost of 100 kg of wheat = ₹2000