Sequences and Series Test 7

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Sequences and Series Test 7

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Weekly Quiz Competition

Question 1
1 / -0

ac_cab_baca_aba_acac

A
aacb

B
acbc

C
babb

D
bcbb

Solution

Pattern is combination of two series
acac and abab, acac/abab/acac/abab/acac
Question 2
1 / -0

aab....aaa......bba.....

A
baa

B
abb

C
bab

D
bbb

Solution

1 First blank space should be filled in by 'b' so that we have two a's followed by two b's
2 Second blank space should be filled in either by 'a' so that we have four a's followed by two b's or by 'b' so that we have three a's followed by three b's
3 Last space must be filled in by 'a'
4 Thus we have two possible answer : 'baa' and 'bba' But only 'baa' appears in the alternatives So the answer is (a).
5 In case we had both the possible answer in the alternatives we would have chosen the one that forms a more prominent pattern which is aabb/aaabbb/aa Thus our answer would have been "bba"
Question 3
1 / -0

b_abbc_bbca_bcabb_ab

A
acaa

B
acba

C
cabc

D
cacc

Solution

Pattern is bcab/bcab/bcab/bacb/bcab
Question 4
1 / -0

aba_baca_ba_bacaabac_aca

A
cacb

B
ccab

C
cabc

D
abcc

Solution

Pattern is abac/baca/abac/baca/abac/baca
Thus the pattern abac,baca is repeated
Question 5
1 / -0

adb_ac_da_cddcb_dbc_cbda

A
bccba

B
cbbaa

C
ccbba

D
bbcad

Solution

Pattern is adbc/acbd/abcd/dcba/dbca/cbda
Here letters are equidistant from the begining and the end of series
Question 6
1 / -0

a_abbb_ccccd_ddccc_bb_ba

A
abcda

B
abdbc

C
abdcb

D
abcad

Solution

Pattern is aaa/bbbb/cccc/dddd/cccc/bbbb/a
Question 7
1 / -0

How many numbers are there between 500 and 600 in which 9 occurs only once?

A
19

B
18

C
10

D
9

Solution

509 , 519 , 529 , 539 , 549 , 559 , 569 , 579 , 589 , 590 , 591 , 592 ,

593 , 594 , 595 , 596 , 597 , 598 ...as 9 has to be occurred only once

so 599 would not be there so only 18 numbers are there.
Question 8
1 / -0

_ab_caa_bbcaa_b_caaa

A
abaab

B
cabab

C
bccaa

D
baaba

Solution

Pattern is aabbc/ aaabbc/ aaabbc/ aaa
Question 9
1 / -0

abc_bc_c_

A
acbbab

B
aabbca

C
aabacb

D
aababc

Solution

Pattern is abc/abc/abc/abc
Question 10
1 / -0

ab _ bc _ c _ ba _ c

A
baac

B
aabb

C
caab

D
aaab

Solution

Pattern is abc/bca/cab/abc
Thus letters are written in a cyclic order

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Re-Attempt Weekly Quiz Competition

Sequences and Series Test 7

Result

Sequences and Series Test 7

Score

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Rank

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SHARING IS CARING

Question 1

aacb

acbc

babb

bcbb

Solution

Question 2

baa

abb

bab

bbb

Solution

Question 3

acaa

acba

cabc

cacc

Solution

Question 4

cacb

ccab

cabc

abcc

Solution

Question 5

bccba

cbbaa

ccbba

bbcad

Solution

Question 6

abcda

abdbc

abdcb

abcad

Solution

Question 7

19

18

10

9

Solution

Question 8

abaab

cabab

bccaa

baaba

Solution

Question 9

acbbab

aabbca

aabacb

aababc

Solution

Question 10

baac

aabb

caab

aaab

Solution

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