Q. No. 109: In the question given below a series is given. After a series a number
is given followed by (i), (ii), (iii), (iv) and (v). You have to
complete the series starting with the number given, following the
sequence of the original series. 897, 681, 556, 492, 465, 457 815, (i), (ii), (iii), (iv),(v)
What will come in place of (iv) ?
A : 367
B : 375
C : 364
D : 383
Answer: D The pattern of series is : 897 - 63 =681, 681-53 = 556, 556-43 =492, 492-33 = 465, 465 -23 = 457. Similarly, 815 - 63 =599, 599-53 = 474, 474-43 =410, 410-33 = 383, 383 -23 = 375.
Q. No. 110: Complete the following series 405, 135, 54, 27, 18, 18 , (..?..)
A : 48
B : 42
C : 30
D : 36
Answer: D 405 * 3/9 = 135, 135*2/5 = 54, 54*3/6 = 27, 27*2/3 = 18, 18*3/3 = 18, 18*2/1 = 36
Q. No. 111: Complete the following series 1, 11, 27, 52, 88, 137, (..?..)
A : 207
B : 205
C : 203
D : 201
Answer: D 2+32 = 11, 11+42 =27, 27+52 = 52, 52+62 =88, 88+72 =137, 137+82 = 201.
Q. No. 112: Complete the following series 8, 14, 30.5, 79.25, 241.25, 848.375, (..?..)
A : 3397.5
B : 3819
C : 3398
D : 4241.75
Answer: C 8*1.5 +2 = 14 14*2+2.5 = 30.5 30.5*2.5+3= 79.25 79.25*3+3.5 = 241.25 241.25*3.5+4 = 848.375 848.375*4+4.5 = 3398.
Q. No. 113: Complete the following series 64, 512, 1728, 4096, 8000, 13824, (..?..)
A : 15625
B : 21952
C : 19683
D : 17576
Answer: B 64 = 43 512 = 83 1728 =12*12*12 4096 =16*16*16 8000=20*20*20 13824 = 24*24*24 283 = 21952
Q. No. 114: Complete the following series 18, 32, 58, 108, 206, 400, (..?..)
A : 786
B : 784
C : 782
D : 780
Answer: A 18*2 -4 = 32 32*2 -6 = 58 58*2 -8 = 108 108*2 - 10 = 206 206*2 - 12 = 400 400*2 - 14 = 786