Aptitude · all questions

Number System
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Q481

Open question

Which of the following is a prime number ?

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Q482

Open question

The number of prime numbers between 301 and 320 are :

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Q483

Open question

6 × 66 × 666 = ?

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Q484

Open question

What is 394 times 113 ?

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Q485

Open question

12345679 × 72 is equal to :

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Q486

Open question

(71 × 29 + 27 × 15 + 8 × 4) equals :

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Q487

Open question

\frac{( 489 + 375 ) ^{2} - ( 489 - 375 ) ^{2}}{( 489 \times 375 )} = ?

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Q488

Open question

If all the numbers from 501 to 700 are written, what is the total number of times the digit 6 appears ?

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Q489

Open question

The number (2⁴⁸ - 1) is exactly divisible by two numbers between 60 and 70. The numbers are :

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Q490

Open question

When the square of any odd number, greater than 1, is divided by 8, it always leaves remainder :

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Q491

Open question

If x = a (b - c), y = b (c - a), z = c (a - b), then the value of

(\frac{x}{a})^{3}

+ (\frac{y}{b})^{3}

+ (\frac{z}{c})^{3}

is :

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Q492

Open question

The largest number that exactly divides each number of the sequence 1⁵ - 1, 2⁵ - 2, 3⁵ - 3, ....., n⁵ - n, ..... is :

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Q493

Open question

\frac{( 963 + 476 ) ^{2} + ( 963 - 476 ) ^{2}}{( 963 \times 963 + 476 \times 476 )} = ?

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Q494

Open question

Which one of the following numbers is divisible by 3 ?

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Q495

Open question

(9⁶ + 1) when divided by 8, would leave a remainder of :

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Q496

Open question

A 3-digit number 4a3 is added to another 3-digit number 984 to give the four-digit number 13b7, which is divisible by 11. Then, (a + b) is :

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Q497

Open question

\frac{768 \times 768 \times 768 + 232 \times 232 \times 232}{768 \times 768 - 768 \times 232 + 232 \times 232} = ?

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Q498

Open question

If 6*43 - 46@9 = 1904, which of the following should come in place of * ?

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Q499

Open question

The numbers 2, 4, 6, 8 ..... 98, 100 are multiplied together. The number of zeros at the end of the product must be :

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Q500

Open question

A number divided by 68 gives the quotient 260 and remainder zero. If the same number is divided by 65, the remainder is :

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Number Systempractice.

Number System
practice.