numeral Search

Q:

What is the base of the Octal Numeral System?

A) 8	B) 16
C) 32	D) 64

Answer & Explanation Answer: A) 8

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

Q:

What does 'M' stand for in Roman numerals?

A) 1	B) 50
C) 500	D) 1000

Answer & Explanation Answer: D) 1000

Explanation:

Letters of the alphabet used in ancient Rome to represent numbers:

I = 1;

V = 5;

X = 10;

L = 50;

C = 100;

D = 500;

M = 1000.

The numbers one through ten are written I, II, III, IV, V, VI, VII, VIII, IX, and X.

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Q:

5 Digits Number?

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

We can make an equation:

3(100000 + x) = 10x+1

(Why? Well, adding 100000 puts a 1 at the front of a five-digit number, and multiplying by 10 and adding 1 puts a 1 at the end of a number)

Solving this gives:

10x+1 = 3(100000 + x)
10x+1 = 300000 + 3x
10x = 299999 + 3x
7x = 299999
x = 299999/7 = 42857

The answer is 42857 (142857 is three times smaller than 428571).

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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:

Find a 10-digit number, where the first figure defines the count of zeros in this number, the second figure the count of numeral 1 in this number etc. At the end the tenth numeral character expresses the count of the numeral 9 in this number.

Answer

Sum of all numerals must be ten because each numeral stands for the count of other numerals and because this number shall have ten numerals. Beginning to choose reasonable numerals for the first figure you can come across the correct number: 6210001000.

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Subject: Number Puzzles

Q:

Can you arrange 9 numerals - 1, 2, 3, 4, 5, 6, 7, 8 and 9 [using each numeral just once] above and below a division line, to create a fraction equaling to 1/3 [one third]?

Answer

$\frac{5832}{17496}=\frac{1}{3}$

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Subject: Number Puzzles

Q:

Three of the following four pairs of alphas and numerals have same relationship between their elements as in the case of the pair PROBLEM : 2948375 and hence form a group. Which one does not belong to the group?

A) BORE : 8497	B) MOEP : 5972
C) LBOR : 3849	D) OMEP : 4572

Answer & Explanation Answer: B) MOEP : 5972

Explanation:

Here simple coding language has been used. Each letter has been assigned a numeric code and the respective code of letters are in the same order as the letters.

Letter B E L M O P R

Code 8 7 3 5 4 2 9

BORE -> 8497 -- correct

MOEP -> 5472 But given 5972 --- Incorrect

LBOR -> 3849 -- correct

OMEP -> 4572 -- correct

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Filed Under: Classification
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Q:

The difference between the place value and the face value of 7 in the numeral 967452 is

A) 6393	B) 5831
C) 6993	D) 6339

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