The percentage of metals in a mine of zinc ore is | Percentage Questions & Answers

Q:

A shopkeeper offers the following 3 schemes. Which scheme has the lowest discount percentage (all articles have same marked price)?

I. Two successive discounts of 10% and 10%

II. Buy 7 get 8

III. Buy 9 get 1 free

A) Only II	B) Only III
C) Only II and III	D) All are equal.

Answer & Explanation Answer: B) Only III

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19 1685

Q:

In an election between two candidates, the winning candidate got 70% of the valid votes and won by a majority of 9000 votes. If out of total votes polled 90% votes are valid, then what is the total number of votes polled?

A) 30000	B) 25000
C) 22500	D) 27000

Answer & Explanation Answer: B) 25000

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18 2264

Q:

You went to buy 3 articles worth Rs.500 each. However, as per the discount sale going on in the shop, you paid for two and got one free. What is the discount percentage in the deal?

A) 30%	B) 33%
C) 33.13%	D) 33.33%

Answer & Explanation Answer: D) 33.33%

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14 1318

Q:

$\frac{1}{33} of \frac{1}{66} of \frac{1}{33} of \frac{1}{66}$ of 10000 of a number will be what percentage of that number?

A) 2.32	B) 1.32
C) 0.232	D) 0.0232

Answer & Explanation Answer: A) 2.32

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15 25787

Q:

If one needs to score 34% to pass a test, the pass marks out of 40 would be:

A) 13.2	B) 14.2
C) 13.6	D) 14.6

Answer & Explanation Answer: C) 13.6

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10 38492

Q:

84% of a number is 105. The number is :

A) 120	B) 115
C) 112	D) 125

Answer & Explanation Answer: D) 125

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8 1273

Q:

56% of 250 is

A) 56	B) 140
C) 84	D) 112

Answer & Explanation Answer: B) 140

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12 993

Q:

The difference between 44% of a number and 33% of the same number is 286. What is the 54% of that number?

A) 1564	B) 1404
C) 1456	D) 1304

A) 5147 kg	B) 4764 kg
C) 3587 kg	D) 2125 kg

The percentage of metals in a mine of zinc ore is 60%. Now the percentage of silver is 3/4% of metals and the rest is zinc. If the mass of ore extracted from the mine is 8000 kg, the mass (in kg) of zinc is

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