12
You visited us
12
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Mathematics
Sequence
If 32 × 41=...
Question
If 32
×
41=15; 51
×
34= 46; 41
×
52 = 37 then 87
×
53 = ?
A
68
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
64
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
85
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
18
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
E
42
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
D
18
The logic is:
32
×
41
=
(
3
−
2
)
(
4
+
1
)
=
15
;
32×41=(3−2)(4+1)=15;
51
×
34
=
(
5
−
1
)
(
3
+
4
)
=
47
51×34=(5−1)(3+4)=47
etc.
∴
87
×
53
=
(
8
−
7
)
(
5
+
3
)
=
18
Suggest Corrections
0
Similar questions
Q.
If
32
×
41
=
15
;
51
×
34
=
46
;
41
×
52
=
37
, then
87
×
53
=
?
=?
Q.
Prepare a frequency table taking class intervals 20−24, 25−29, 30−34 and so on, from the following data:
21
20
55
39
48
46
36
54
42
30
29
42
32
40
34
31
35
37
52
44
39
45
37
33
51
53
52
46
43
47
41
26
52
48
25
34
37
33
36
27
54
36
41
33
23
39
28
44
45
38
Q.
If
A
=
⎡
⎢ ⎢ ⎢ ⎢ ⎢ ⎢ ⎢
⎣
2
3
1
3
7
3
1
2
3
2
5
3
4
3
2
3
⎤
⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎥
⎦
and
B
=
⎡
⎢ ⎢ ⎢ ⎢ ⎢ ⎢ ⎢
⎣
2
5
1
5
7
5
3
5
2
5
6
5
1
4
5
2
5
⎤
⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎥
⎦
, then compute
3
A
−
5
B
.
Q.
Prepare a frequency table of the following scores obtained by 50 students in a test:
42
51
21
42
37
37
42
49
38
52
7
33
17
44
39
7
14
27
39
42
42
62
37
39
67
51
53
53
59
41
29
38
27
31
54
19
53
51
22
61
42
39
59
47
33
34
16
37
57
43