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CDS Model Paper 3 Mathematics
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© examsnet.com
Question : 2
Total: 100
What is the missing figure (x) in the expression given below?
16
7
×
16
7
−
x
7
×
9
7
+
9
7
×
9
7
=
1
1
7
4.57
32
Validate
Solution:
Let the missing figure in the expression be x.
16
7
×
16
7
−
x
7
×
9
7
+
9
7
×
9
7
=
1
⇒
16
×
16
−
9
x
+
9
×
9
=
7
×
7
⇒
9
x
=
16
×
16
+
9
×
9
−
7
×
7
=
256
+
81
−
49
=
288
⇒
x
=
228
9
=
32
© examsnet.com
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