COMPUTER APTITUDE QUESTIONS : hex/Octal to Decimal Form : Set 8
COMPUTER APTITUDE QUESTIONS : hex/Octal to Decimal Form : Set 8
Dear bankersdaily aspirant,
Computer aptitude is one of the easiest scoring part in IBPS PO Mains 2017 examination. To Score good marks in computer aptitude, you need to have a good practice on the topic. So use this set for your Practice.
D.1-5): Convert the following hexadecimal numbers to decimal form.
Q.1) 25816
(a) 605
(b) 615
(c) 590
(d) 610
(e) 600
Solution:
e
= 2×162 + 5×161+ 8×160
= 512 + 80 + 8
= 600
Q.2)2AC16
(a) 684
(b) 672
(c) 690
(d) 686
(e) 668
Solution:
a
= (2×256) + (10×16) + (12×1)
= 512 + 160 + 12
= 684
Q.3) AC16
(a)150
(b) 160
(c) 170
(d) 155
(e) 172
Solution:
e
= 160 + 12 = 172
Q.4) B416
(a) 182
(b) 176
(c) 180
(d) 176
(e) 186
Solution:
c
= 176 + 4 = 180
Q.5) FFA16
(a) 4430
(b) 4090
(c) 4130
(d) 4250
(e) 4290
Solution:
b
= (15×256) + (15×16) + (10×1)
= 3840 + 240 + 10
= 4090
D.6-10): Convert the following octal numbers to decimal form.
Q.6) 2348
(a) 152
(b) 146
(c) 158
(d) 156
(e) 162
Solution:
d
= 2 × 64 + 24 + 4
= 128 + 24 + 4
= 156
Q.7) 1248
(a) 86
(b) 84
(c) 80
(d) 74
(e) 76
Solution:
b
= 64 + 16 + 4
= 84
Q.8) 2378
(a) 153
(b) 149
(c) 154
(d) 159
(e) 168
Solution:
d
= (2 × 82) + (3 × 81) + (7 × 80)
= 128 + 24 + 7
= 159
Q.9) 3408
(a) 224
(b) 284
(c) 216
(d) 218
(e) 228
Solution:
a
= (3 × 64) + (4 × 8) + 0
= 192 + 32 + 0
= 224
Q.10) 508
(a) 318
(b) 326
(c) 334
(d) 328
(e) 320
Solution:
d
= (64 × 5) + 0 + (8 × 1)
= 320 + 8 = 328