MCQ on Number Series for Competitive Exams
Solve the number series questions given below:
3 219 344 408 ? 443 444
(a) 416
(b) 435
(c) 423
(d) 428
(e) None of these
Solution: (b)
The pattern of the number series is :
\(\displaystyle 219-3=216={{6}^{3}}\)
\(\displaystyle 344-219=125={{5}^{3}}\)
\(\displaystyle 408-344=64={{4}^{3}}\)
\(\displaystyle ?=408+{{3}^{3}}=408+27=435\)
2 14 84 420 1680 5040 ?
(a) 8940
(b) 8680
(c) 10080
(d) 5030
(e) None of these
Solution: (c)
The pattern of the number series is as given below:
\(\displaystyle 2\times 7=14\)
\(\displaystyle 14\times 6=84\)
\(\displaystyle 84\times 5=420\)
\(\displaystyle 420\times 4=1680\)
\(\displaystyle 1680\times 3=5040\)
\(\displaystyle 5040\times 2=10080\)
27 125 ? 729 1331 2197 3375
(a) 612
(b) 347
(c) 216
(d) 343
(e) None of these
Solution: (d)
The pattern of the number series is as given below:
\(\displaystyle {{3}^{3}}=27;{{5}^{3}}=125\)
\(\displaystyle {{7}^{3}}=343;{{9}^{3}}=729\)
\(\displaystyle {{11}^{3}}=1331;{{13}^{3}}=21973\)
\(\displaystyle {{15}^{3}}=3375\)
358356 352 344 328 296 ?
(a) 232
(b) 247
(c) 225
(d) 255
(e) None of these
Solution: (a)
The pattern of the number series is as given below:
358 – 2 = 356
356 – 4 = 352
352 – 8 = 344
344 – 16 = 328
328 – 32 = 296
296 – 64 = 232
50000 10000 2500 500 125 ? 6.25
(a) 75
(b) 25
(c) 50
(d) 31.5
(e) None of these
Solution: (b)
The pattern of the number series is as given below:
\(\displaystyle 50000\div 5=10000\)
\(\displaystyle 10000\div 4=2500\)
\(\displaystyle 2500\div 5=500\)
\(\displaystyle 500\div 4=125\)
\(\displaystyle 125\div 5=25\)
\(\displaystyle 25\div 4=6.25\)
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