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Q:

What is the simplified value of

$\frac{1}{\sqrt{17} - \sqrt{16}} - \frac{1}{\sqrt{16} - \sqrt{15}} + \frac{1}{\sqrt{15} - \sqrt{14}} - \frac{1}{\sqrt{14} - \sqrt{13}} + \frac{1}{\sqrt{13} - \sqrt{12}}$ ?

A) 4 – 2√3	B) √17 – 3√2
C) √17 + √12	D) 4 + 2√3

Answer & Explanation Answer: C) √17 + √12

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

Manik marks the price of his toys 40% above the cost price. If he allows 20% discount, then what is the profit or loss percentage?

A) 4% profit	B) 12% profit
C) 8% loss	D) 12% loss

Answer & Explanation Answer: B) 12% profit

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

The difference between cost price and selling price is Rs 494. If loss percentage is 19%, then what is the selling price (in Rs)?

A) 2106	B) 2600
C) 3094	D) 2208

Answer & Explanation Answer: A) 2106

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

The average weight of 35 apples is 50 grams. If some apples of weight 40 grams each were removed, then average weight becomes 57.5 grams. How many apples of weight 40 grams were removed?

A) 5	B) 10
C) 15	D) 20

Answer & Explanation Answer: C) 15

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Filed Under: Average
Exam Prep: Bank Exams

Q:

In a container, two types of liquids P and Q are in the ratio of 3 : 7. If 10 litres mixture is drawn off from the container and filled with 6 litres of liquid Q,then the ratio of P and Q becomes 1 : 3. What was the original quantity (in litres) of mixture?

A) 34	B) 36
C) 30	D) 40

Answer & Explanation Answer: D) 40

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams , CAT

Q:

If y% of y is 289, then what is the value of y?

A) 149	B) 160
C) 170	D) 173

Answer & Explanation Answer: C) 170

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Filed Under: Percentage
Exam Prep: Bank Exams

Q:

Calculate the length (in cm) of PQ, if the radius of the circle is 7 cm and the line through the centre O meets the tangent at point Q such that OP = 25 cm.

A) 20	B) 22
C) 24	D) 26

Answer & Explanation Answer: C) 24

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

In a farm, in addition to 48 hens there are 42 sheep and 11 oxen with some shepherds. If the total number of feet be 224 more than the number of heads, find the number of shepherd.

A) 11	B) 13
C) 15	D) 17

Answer & Explanation Answer: D) 17

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Filed Under: Simplification
Exam Prep: Bank Exams , CAT

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