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Q:

Which containers use a border Layout as their default layout ?

Answer

The window, Frame and Dialog classes use a border layout as their default layout.

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Subject: Java

Q:

Which number multiplied by itself will give the output as 12345678987654321 ?

Answer

11 * 11 = 121

111 * 111 = 12321

what we observe is that the square of the number follows a pattern: 2 1's gives 121. 3 1's gives 12321.

so to get 12345678987654321 we need to get square of 9 1's(111,111,111).

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Subject: Math Puzzles

Q:

What 5 - digit number has the following features :

If we put the numeral 1 at the beginning, we get a number three times smaller than if we put the numeral 1 at the end of the number?

Answer

Let the 5 digit number be represented by abcde.

Then the 6 digit number, 1abcde x 3 = abcde1 (another 6 digit number)

Now let Y = abcde

Then (100000 + Y) x 3 = (Y x 10) + 1

300000 + 3Y = 10Y + 1

7Y = 299999

Y = 299999 ÷ 7 = 42857

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Subject: Math Puzzles

Q:

Arrange four nines(9) and a one(1) and only one mathematical symbol to make it equal to 100 ?

Answer

199 - 99 = 100

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Subject: Math Puzzles

Q:

In a Certain Country 1/2 of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10 ?

A) 4	B) 6
C) 8	D) 10

Answer & Explanation Answer: A) 4

Explanation:

Let $\frac{1}{3} (10) = x$

=> 3x = 10

Given that $\frac{1}{2} (5) = 3$

Therefore, $\frac{5}{2} x = 10$

=> x = 10/3 = 4.

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Filed Under: Math Puzzles
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank Clerk

Q:

A women goes to market with Rs.500 to buy oranges.the prices of the oranges have decreased by 10% so he could buy 2kg more with the amount she had.What was the original price of the oranges ?

A) 22.77	B) 25.77
C) 27.77	D) 29.77

Answer & Explanation Answer: C) 27.77

Explanation:

If the price of the oranges decreases by 10%, the woman would save 10% of the money that is Rs.50 to buy the same amount as before.Now in Rs. 50 she can buy 2 kg more, therefore the current price of 1 kg of oranges is Rs25.Now, this current price is after 10% reduction.

Therefore, the original price = 25/0.9 = Rs. 27.77

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Filed Under: Profit and Loss
Exam Prep: CAT , Bank Exams
Job Role: Bank Clerk

Q:

A retailer buys product from a shopkeeper at discount of 40% on the list price (marked price) and sells them to the customer at a discount of 25% on the list price.What is his profit percentage ?

A) 10%	B) 15%
C) 20%	D) 25%

Answer & Explanation Answer: D) 25%

Explanation:

Let the list price be Rs.100.

Therefore, the retailer is buying the products at Rs.60 and selling it to the customer at Rs.75, earning a profit of Rs.15.

Therefore, his percentage is = $\frac{15}{60} x 100$ = 25%

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

Q:

A shopkeeper sells one-third of his goods at a profit of 10%, another one-third at a profit of 20%, and the rest at a loss of 6%.What is his overall profit percentage ?

A) 6%	B) 8%
C) 10%	D) 12%

Answer & Explanation Answer: B) 8%

Explanation:

Let the shopkeeper buy 300g for Rs.300. Now he sells 100g for Rs.110, another 100g for Rs120, and the rest 100g for Rs94.

Therefore, the total amount he receives = Rs.110 + Rs.120 + Rs.94 = 324.

Therefore, the shopkeeper spends Rs.300 and gets back Rs.324.

Therefore, his profit percentage = $\frac{24}{300} x 100$ % = 8%

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

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