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If 3×4=14; 5×6=33; 7×8=60, then 8×9=?
If 3×4=14; 5×6=33; 7×8=60, then 8×9=?
77
88
89
78
Explanation
3
×
4
=
3
×
4
+
2
=
14
in first example
5
×
6
=
5
×
6
+
3
=
33
in second example
7
×
8
=
7
×
8
+
4
=
60
in third example
Therefore,
8
×
9
=
8
×
9
+
5
=
77
in fourth
Hence, A is correct option.