2 years ago in Percentage

# Out of the total production of iron from hematite, an ore of Iron, 20% of the ore gets wasted, and out of the remaining iron, only 25% is pure iron. If the pure iron obtained in a year from a mine of hematite was 80,000 kg, then the quantity of hematite mined from that mine in the year is

[A] 5,00,000 kg
[B] 4,00,000 kg
[C] 4,50,000 kg
[D] None of these

## Overall Stats

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Dinesh Garg - 1 year ago

Dinesh Garg from Jind, India is saying 4,00,000 kg is correct answer

Chhavi Jain - 2 years ago

Chhavi Jain from Jaipur, India is saying None of these is correct answer

Francis Rai - 2 years ago

Francis Rai from Assam, India is saying 4,50,000 kg is correct answer

## Related Questions

• [A] 84%
• [B] 85.5%
• [C] 80%
• [D] 83.33%

• [A] 45000
• [B] 48000
• [C] 50000
• [D] 52000

### Gauri went to the stationers and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?

• [A] Rs. 15
• [B] Rs. 15.70
• [C] Rs. 19.70
• [D] Rs. 20

### The price of raw materials has gone up by 15%, labour cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be reduction in the usage of raw materials so as to keep the cost same?

• [A] 28%
• [B] 17%
• [C] 27%
• [D] 24%
• [E] Cannot determined

• [A] 2700
• [B] 2900
• [C] 3000
• [D] 3100