50+ Reasoning & mental ability questions and answers
for 3rd and 4th grade
Questions
1. If A
is B's sister, C is B's mother, and D is C's father, how is D related to A?
o A.
Grandfather
o B.
Father
o C.
Brother
o D.
Uncle
2. Choose
the word which is different from the rest.
o A.
Tiger
o B.
Leopard
o C.
Lion
o D.
Elephant
3. If
the code for CAT is ECV, what is the code for DOG?
o A.
FQI
o B.
FPI
o C.
EPI
o D.
EQI
4. Which
number should come next in the series? 2, 6, 12, 20, 30, ___.
o A.
42
o B.
44
o C.
48
o D.
50
5. Pointing
to a man in a photograph, a woman said, "His brother's father is the only
son of my grandfather." How is the woman related to the man in the
photograph?
o A.
Sister
o B.
Mother
o C.
Aunt
o D.
Daughter
6. If
in a certain language, TEACHER is coded as VGCEJGT, how is STUDENT coded in
that language?
o A.
UWVGFRV
o B.
UVXGFPV
o C.
UVWFGPV
o D.
UWVEFRV
7. If
ZEBRA is written as 2652181, how can COW be written in that code?
o A.
31523
o B.
3815
o C.
3823
o D.
3125
8. Which
one of the four is least like the other three?
o A.
Circle
o B.
Triangle
o C.
Square
o D.
Rectangle
9. In a
certain code, 'BRIDGE' is written as 'DSKHGE'. How is 'HOUSE' written in that
code?
o A.
ITQVF
o B.
HTVRF
o C.
ITUVE
o D.
HVQSE
10.
If A = 1, B = 2, ..., Z = 26, what is the
value of the word "BACK"?
o A.
25
o B.
14
o C.
24
o D.
27
11.
Find the odd one out.
o A.
Whale
o B.
Dolphin
o C.
Shark
o D.
Octopus
12.
If 5 + 3 = 28 and 7 + 4 = 711, what is 9 + 6?
o A.
915
o B.
918
o C.
921
o D.
924
13.
If MEET is coded as 132213201, how is FEED
coded in that language?
o A.
65145124
o B.
56145124
o C.
65145214
o D.
65145224
14.
If 1 = 5, 2 = 25, 3 = 325, then 4 = ?
o A.
425
o B.
4325
o C.
4325
o D.
5325
15.
In a certain code, H = 8, HELLO = 17, then
HOTEL = ?
o A.
35
o B.
45
o C.
43
o D.
40
16.
If JOY is coded as LQA, then SAD is coded as:
o A.
VCF
o B.
TBC
o C.
UCF
o D.
VBF
17.
What should come in place of the question
mark in the following series? 3, 9, 27, 81, ?
o A.
243
o B.
162
o C.
189
o D.
256
18.
If BREAD is written as SQNZQ in a certain
code, how is BUTTER written in that code?
o A.
SGLGGS
o B.
TGLGGS
o C.
SGGGSL
o D.
SGGGLS
19.
Which word does not belong with the others?
o A.
Bike
o B.
Car
o C.
Truck
o D.
Ship
20.
If the word TROUBLE is coded as GYOFVRK, how
will the word PROBLEM be coded?
o A.
KQNVIMT
o B.
OQNVIMT
o C.
JQNVIMT
o D.
IQNVIMT
21.
Find the odd one out.
o A.
Alpha
o B.
Delta
o C.
Omega
o D.
Gamma
22.
If AT = 20, BAT = 40, then CAT = ?
o A.
60
o B.
50
o C.
80
o D.
70
23.
Which number will replace the question mark
in the series? 4, 9, 19, 39, ?
o A.
49
o B.
59
o C.
79
o D.
89
24.
If KID = 29, then DOG = ?
o A.
26
o B.
27
o C.
28
o D.
29
25.
If in a certain code, COMET is written as
DNNEU, how is EARTH written in that code?
o A.
FBSUI
o B.
FCTUI
o C.
FBSVI
o D.
FBSUJ
26.
Choose the odd one out.
o A.
EFGH
o B.
IJKL
o C.
MNOP
o D.
OPQR
27.
If 3 (9) 4 = 56 and 5 (12) 6 = 132, then 7
(14) 8 = ?
o A.
224
o B.
234
o C.
244
o D.
254
28.
If RED is coded as 672, how is BLUE coded?
o A.
7292
o B.
7372
o C.
6272
o D.
7262
29.
In a certain code, MONKEY is written as
XDJMNL. How is TIGER written in that code?
o A.
RGHFT
o B.
SHFDQ
o C.
QDFHS
o D.
HFDSQ
30.
Find the next term in the series: 1, 4, 9,
16, 25, ___.
o A.
36
o B.
49
o C.
64
o D.
81
31.
If A is coded as 1, Z as 26, and DOG as 26,
what is CAT?
o A.
24
o B.
27
o C.
28
o D.
30
32.
Find the odd one out.
o A.
Apple
o B.
Banana
o C.
Orange
o D.
Potato
33.
If ABCD is coded as ZYXW, what is the code
for EFGH?
o A.
VUTS
o B.
WTSR
o C.
VTUS
o D.
WUTS
34.
If in a certain code, FLAME is written as
EKNLC, how is GLAZE written in that code?
o A.
FKYBD
o B.
HKYBD
o C.
FLXBD
o D.
FKXBD
35.
If 3 + 4 = 12 and 5 + 6 = 30, then 7 + 8 = ?
o A.
72
o B.
56
o C.
63
o D.
65
36.
Find the next term in the series: 5, 10, 20,
40, ___.
o A.
60
o B.
70
o C.
80
o D.
90
37.
If P = 16 and LEAP = 35, what is the value of
DEAL?
o A.
22
o B.
30
o C.
34
o D.
32
38.
Which number should replace the question mark
in the series? 2, 3, 5, 8, ?
o A.
10
o B.
11
o C.
12
o D.
13
39.
If RAIN is coded as 6, WIND is coded as 8,
how is STORM coded?
o A.
10
o B.
12
o C.
14
o D.
16
40.
If C = 3, COB = 24, what is CODE?
o A.
27
o B.
30
o C.
33
o D.
36
41.
Find the odd one out.
o A.
Brother
o B.
Cousin
o C.
Friend
o D.
Sister
42.
If the word POLICE is coded as QPMJDF, how is
THIEF coded in that code?
o A.
UIJFG
o B.
SGHDG
o C.
UIJEG
o D.
SGHDH
43.
What should come in place of the question
mark in the series? 1, 4, 8, 13, ?
o A.
17
o B.
18
o C.
19
o D.
20
44.
If 1 + 2 = 3 and 2 + 3 = 10, what is 3 + 4?
o A.
18
o B.
19
o C.
20
o D.
21
45.
If PEN = 35 and PAPER = 50, what is BOOK?
o A.
42
o B.
43
o C.
44
o D.
45
46.
If 2 = 8, 3 = 27, what is 4?
o A.
32
o B.
64
o C.
81
o D.
128
47.
If 6 + 2 = 40 and 4 + 2 = 24, what is 5 + 1?
o A.
20
o B.
22
o C.
30
o D.
32
48.
Find the odd one out.
o A.
January
o B.
February
o C.
March
o D.
Friday
49.
If in a certain code, TRAIN is written as
RPFGL, how is CLOCK written in that code?
o A.
AJKBI
o B.
YJFBI
o C.
AJYBI
o D.
AJFBI
50.
If A = 1, B = 3, C = 5, then D = ?
o A. 7
o B. 9
o C.
11
o D.
13
Answers
1. A.
Grandfather
2. D.
Elephant
3. A.
FQI
4. A.
42
5. A.
Sister
6. D.
UWVEFRV
7. B.
3815
8. A.
Circle
9. C.
ITUVE
10.
C. 24
11.
D. Octopus
12.
B. 918
13.
D. 65145224
14.
B. 4325
15.
C. 43
16.
A. VCF
17.
A. 243
18.
A. SGLGGS
19.
D. Ship
20.
A. KQNVIMT
21.
C. Omega
22.
A. 60
23.
C. 79
24.
B. 27
25.
A. FBSUI
26.
D. OPQR
27.
A. 224
28.
B. 7372
29.
A. RGHFT
30.
A. 36
31.
B. 27
32.
D. Potato
33.
A. VUTS
34.
D. FKXBD
35.
A. 72
36.
C. 80
37.
B. 30
38.
B. 11
39.
C. 14
40.
D. 36
41.
C. Friend
42.
A. UIJFG
43.
C. 19
44.
B. 19
45.
B. 43
46.
B. 64
47.
A. 20
48.
D. Friday
49.
D. AJFBI
50.
A. 7