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Number System

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?

34
65
23
78

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

65

Number System
What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361

11
225
121
321

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The series is (Prime No.)²So it is (11)² = 121

Number System
Twenty times a positive integer is less than its square by 96. What is the integer?

24
20
30
Cannot be determined

ANSWER DOWNLOAD EXAMIANS APP

Number System
What is the least number to be subtracted from 696 to make it a perfect square?

1
20
71
16

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The numbers less than 696 and are squares of certain numbers are 676, 625.The least number that should be subtracted from 696 to make it perfect square = 696 - 676 = 20.

Number System
What is the sum of all the composite numbers up to 20?

131
132
130
128

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132

Number System
If three eighth of a number is 141. What will be the approximately value of 32.08% of this number?

160
90
120
60

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x * 3/8 = 141 => x= 376376 * 32.08/100 = 120

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