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Byju's Answer
Standard X
Mathematics
Sum of First n Natural Numbers
The value of ...
Question
The value of
1
97
+
2
97
+
.
.
.
.
.
+
96
97
is:
A
48
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B
−
48
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C
1
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D
None of the above
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Solution
The correct option is
A
48
We know,
Sum of
n
natural numbers
=
n
(
n
+
1
)
2
∴
1
97
+
2
97
+
.
.
.
.
.
+
96
97
=
1
+
2
+
3
+
.
.
.
.
+
96
97
=
96
×
97
2
×
97
=
48
Hence, the answer is
48
.
Suggest Corrections
0
Similar questions
Q.
Let
(
n
k
)
represents the combination of '
n
' things taken '
k
' at a time, then the value of the sum
(
99
97
)
+
(
98
96
)
+
(
97
95
)
+
.
.
.
.
.
.
.
.
+
(
3
1
)
+
(
2
0
)
equals-
Q.
If
f
(
x
)
=
4
x
4
x
+
2
,
f
(
x
)
+
f
(
1
−
x
)
=
a
and
f
(
1
97
)
+
f
(
2
97
)
+
⋯
+
f
(
96
97
)
=
b
then order pair
(
a
,
b
)
is
Q.
If
f
(
x
)
=
4
x
4
x
+
2
, then
f
(
1
97
)
+
f
(
2
97
)
+
.
.
.
.
+
f
(
96
97
)
is equal to :
Q.
The value of (97)
2
is ______.
Q.
Mark (✓) against the correct answer
Reciprocal of
-
7
9
is
(a)
9
7
(b)
-
9
7
(c)
7
9
(d) none of these
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