Mathematical Operation SSC CHSL Questions

Mathematical Operation MCQ Questions

1.
Which number will replace the question mark (?) to complete the given series?
2, 5, 10, 17, 26, 37, 50, ?
SSC CHSL 2023-09.08.2023-2
A.
67
B.
61
C.
63
D.
65
ANSWER :
D. 65
2.
What will come in place of the question mark (?) in the following equation if โ€˜รทโ€™ and โ€˜โ€“โ€™ are interchanged and โ€˜ร—โ€™ and โ€˜+โ€™ are interchanged?
5 รท 8 + 2 โ€“ 9 = ?
SSC CHSL 2023-09.08.2023-2
A.
55
B.
54
C.
47
D.
37
ANSWER :
C. 47
3.
Select the number from among the given options that can replace the question mark (?) in the following series.
3, 6, 15, 42, 123, ?
SSC CHSL 2023-09.08.2023-3
A.
366
B.
362
C.
368
D.
365
ANSWER :
A. 366
4.
If โ€˜Aโ€™ stands for โ€˜รทโ€™, โ€˜Bโ€™ stands for โ€˜ร—โ€™, โ€˜Cโ€™ stands for โ€˜+โ€™ and โ€˜Dโ€™ stands for โ€˜-โ€™, what will come in place of the question mark (?) in the following equation?
42 A 7 B 11 C 57 D 10 = ?
SSC CHSL 2023-09.08.2023-4
A.
109
B.
113
C.
118
D.
111
ANSWER :
B. 113
5.
What will come in place of the question mark (?) in the following equation if ‘+’ and ‘-’ are interchanged and ‘×’ and ‘÷’ are interchanged?
45 × 7 ÷ 13 - 87 + 12 = ?
SSC CHSL 2023-10.08.2023-1
A.
167
B.
166
C.
159
D.
171
ANSWER :
B. 166
6.
If โ€˜Aโ€™ stands for โ€˜รทโ€™, โ€˜Bโ€™ stands for โ€˜ร—โ€™, โ€˜Cโ€™ stands for โ€˜+โ€™ and โ€˜Dโ€™ stands for โ€˜-โ€™, what will come in place of the question mark (?) in the following equation?
153 C 65 A 13 B 6 D 85 = ?
SSC CHSL 2023-10.08.2023-1
A.
101
B.
96
C.
98
D.
91
ANSWER :
C. 98