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Number System

Number System
What is the difference between the local values of 3 in the number 53403?

3003
2997
0
3030

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3000 – 3 = 2997

Number System
On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is:

47649
47719
47619
48619

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619     333333----------------        0

Number System
How many figures are required for numbering the pages of a book containing 1000 pages?

6489
2883
3892
2893

ANSWER DOWNLOAD EXAMIANS APP

Number System
How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together?

10
8
9
11

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(700 – 300)/42 = 9 22/42 => 9 Numbers

Number System
64% of 2650+40% 0f 320=?

2096
1578
1824
1247

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1824

Number System
The sum of three consecutive multiples of 3 is 72. What is the largest number?

27
21
36
24

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.

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