Number System and Simplification SSC CGL Questions

Number System and Simplification MCQ Questions

13.
Which is the smallest multiple of 7, which leaves 5 as remainder in each case, when divided by 8, 9, 12 and 15?
SSC CGL 2021-12.04.2022-1
A.
365
B.
1085
C.
2525
D.
725
ANSWER :
B. 1085
14.
What is the greatest number by which when 156, 181 and 331 are divided, the remainder is 6 in each case?
SSC CGL 2021-11.04.2022-3
A.
26
B.
17
C.
25
D.
13
ANSWER :
C. 25
15.
If the 7-digit number x8942y4 is divisible by 56, what is the value of (x² + y) for the largest value of y, where x and y are natural numbers?
SSC CGL 2021-11.04.2022-3
A.
33
B.
44
C.
55
D.
70
ANSWER :
C. 55
16.
Simplify the following expression:

SSC CGL 2021-11.04.2022-3
A.
\(\dfrac{13}{147}\)
B.
\(29\dfrac{9}{32}\)
C.
\(-1\dfrac{5}{14}\)
D.
\(-\dfrac{5}{28}\)
ANSWER :
C. \(-1\dfrac{5}{14}\)
17.
Find the value of 703 + 203 - 903 .
SSC CGL 2021-12.04.2022-1
A.
0
B.
378000
C.
-378000
D.
-300000
ANSWER :
C. -378000
18.
Six bells begin to toll together and toll, respectively, at intervals of 3, 4, 6, 7, 8 and 12 seconds. After how many seconds will they toll together again?
SSC CGL 2021-12.04.2022-2
A.
167
B.
168
C.
176
D.
186
ANSWER :
B. 168