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Number System
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Q641

Open question

Which of the following pairs of non-zero values of p and q make 6-digit number 674pq0 divisible by both 3 and 11?

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Q642

Open question

The number which can be written in the form of n(n + 1)(n + 2), where n is a natural number, is:

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Q643

Open question

What is the value of 9991 × 10009?

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Q644

Open question

Twenty one times of a positive number is less than its square by 100. The value of the positive number is:

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Q645

Open question

Let x = (633)²⁴ - (277)³⁸ + (266)⁵⁴. What is the units digits of x?

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Q646

Open question

What is the sum of all the common terms between the given series S₁ and S₂?
S₁ = 2, 9, 16, . . . . . ., 632
S₂ = 7, 11, 15, . . . . . ., 743

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Q647

Open question

The sum of 10 terms of the arithmetic series is 390. If the third term of the series is 19. Find the first term?

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Q648

Open question

If x = (164)¹⁶⁹ + (333)³³⁷ - (727)⁷²⁶, then what is the units digit of x?

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Q649

Open question

The quotient when 10¹⁰⁰ is divided by 5⁷⁵ is:

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Q650

Open question

x, y and z are distinct prime numbers where x < y < z. If x + y + z = 70, then what is the value of z?

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Q651

Open question

If the six digit number 15x1y2 is divisible by 44, then (x + y) is equal to:

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Q652

Open question

The number 150328 is divisible by 23. If the digits are rearranged in descending order and five times of 13 is subtracted from the new number thus formed, then the resultant number will be divisible by:

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Q653

Open question

If a 10-digit number 1330x558y2 is divisible by 88, then the value of (x + y) is:

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Q654

Open question

The smallest fraction, which should be added to the sum of

2 \frac{1}{2}, 3 \frac{1}{3}, 4 \frac{1}{4}

and

5 \frac{1}{5}

to make the result a whole number, is.

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Q655

Open question

The product of two number is 48. If one number equals "The number of wings of a bird plus 2 times the number of figure on your hand divided by the number of wheels of a Tricycle." Then the other number is?

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Q656

Open question

The maximum value of F in the following equation 5E9 + 2F8 + 3G7 = 1114 is:

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Q657

Open question

When a two-digit number is multiplied by the sum of its digits, the product is 424. When the number obtained by interchanging its digits is multiplied by the sum of the digits, the result is 280. The sum of the digits of the given number is:

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Q658

Open question

What is least possible number when it is divided by 13 leaves 8 and when divided by 7 leaves remainder 6?

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Q659

Open question

If the number 8764x5 is divisible by 9, then find the least possible value of x where x is a two-digit number.

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Q660

Open question

What is the Arithmetic mean of the first 'n' natural numbers?

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Number Systempractice.

Number System
practice.