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Number System

Number System
If a number is subtracted from its square we get 272. Find the number?

24
17
22
14

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x2 – x = 272 => x =17

Number System
Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999

480
490
485
495

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Required average score                    = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8                   = 3880 / 8                   = 485

Number System
If HKUJ means FISH, what does UVCD mean ?

STAR
STAB
STAM
STAK

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

STAB

Number System
A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number?

24
42
84
21

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

2/3 x = 28 => x = 4242 * 1/2 = 21

Number System
The square root of 0.0081 is:

0.09
0.009
0.91
0.9

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

0.09

Number System
?125÷5x ?=6265

1452
153
1253
124

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1253

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