1
JEE Main 2020 (Online) 7th January Evening Slot
+4
-1
Out of Syllabus
If the sum of the first 40 terms of the series,
3 + 4 + 8 + 9 + 13 + 14 + 18 + 19 + ..... is (102)m, then m is equal to :
A
20
B
5
C
10
D
25
2
JEE Main 2020 (Online) 7th January Morning Slot
+4
-1
Five numbers are in A.P. whose sum is 25 and product is 2520. If one of these five numbers is -$${1 \over 2}$$ , then the greatest number amongst them is:
A
$${{21} \over 2}$$
B
27
C
7
D
16
3
JEE Main 2019 (Online) 12th April Evening Slot
+4
-1
If a1, a2, a3, ..... are in A.P. such that a1 + a7 + a16 = 40, then the sum of the first 15 terms of this A.P. is :
A
120
B
200
C
150
D
280
4
JEE Main 2019 (Online) 12th April Morning Slot
+4
-1
Out of Syllabus
For x $$\varepsilon$$ R, let [x] denote the greatest integer $$\le$$ x, then the sum of the series $$\left[ { - {1 \over 3}} \right] + \left[ { - {1 \over 3} - {1 \over {100}}} \right] + \left[ { - {1 \over 3} - {2 \over {100}}} \right] + .... + \left[ { - {1 \over 3} - {{99} \over {100}}} \right]$$ is :
A
- 153
B
- 135
C
- 133
D
- 131
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