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Number System

Number System
What is 432 times 119 ?

50408
53408
51408
52408

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

No. 432 x 119 = 51408

Number System
The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ?

None of these
36
54
14

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be 10 x + yWhere x > yAccording to the question,x + y = 15 and x - y = 3Solving both the equations,x = 9, y = 6∴ x x y = 9 x 6 = 54

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

47619
48619
47649
47719

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number?

None of these
6
3.5
8

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8

Number System
If one third of 3/4 of a number is 21. Then find the number?

84
63
630
840

ANSWER DOWNLOAD EXAMIANS APP

Number System
Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number?

78
65
23
34

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

65

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