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Number System

Number System
16.23 x 12.9 + 17.32 = ?

236.687
226.687
None of these
246.687

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 16.23 x 12.9 + 17.32= 209.367 + 17.32= 226.687

Number System
If a + b = 16 and ab = 68, what is the value of a² + b² ?

112
124
116
120

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

a + b = 16 Therefore, (a+b)² = (16)² = 256                    a² + b² + 2ab = 256Therefore,        a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120

Number System
Complete the series : 1, 8, 27, 64, 125, 216 .....

363
343
353
373

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

343

Number System
What is the difference between the largest and the smallest number written with 7, 7, 0, 7?

6993
6093
6893
693

ANSWER DOWNLOAD EXAMIANS APP

Number System
The number of prime factors of (6)10×(7)17×(55)27

91
41
101
61

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

91

Number System
On converting the following base-2 numeral in base ten, 1101101, we get

109
107
106
108

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

109

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