71)

If the number 645A2879B8 is divisible by both 8 and 9, then the smallest possible values of A and B will be:

SSC CHSL 2021

A)

A = 4, B = 3

B)

A = 3, B = 4

C)

A = 3, B = 2

D)

A = 2, B = 3

72)

The value of 
28 ÷ [25 + 8 ÷ 4 - {25 + (25 of 8 ÷ 20) - (125 ÷ 5 of 25)}] + (25 × 5) is:

SSC CHSL 2021

A)

-121

B)

129

C)

121

D)

-4

73)

If 31⁴⁷ + 43⁴⁷ is divided by 37, the remainder is:

SSC CHSL 2021

A)

2

B)

3

C)

0

D)

1

74)

What is the sum of all the possible values of k for which a seven-digit number 23k567k is divisible by 3?

SSC CHSL 2021

A)

15

B)

16

C)

3

D)

109

75)

If the number 4A306768B2 is divisible by both 8 and 11, then the smallest possible values of A and B will be:

SSC CHSL 2021

A)

A = 5, B = 3

B)

A = 3, B = 5

C)

A = 5, B = 2

D)

A = 5, B = 4

76)

If the 11-digit number 4y6884805x6 is divisible by 72, and x ≠ y, then the value of √xy is:

SSC CHSL 2021

A)

√8

B)

√6

C)

√12

D)

√5

77)

A man covers \(5\over12\) of a total journey by train, \(\frac{7}{18}\) of the journey by bus and the remaining 7 km on foot. His total journey (in km) is:

SSC CHSL 2021

A)

40 km

B)

32 km

C)

35 km

D)

36 km

78)

When a number is divided by 3, the remainder is 2. Again, when the quotient is divided by 7, the remainder is 5. What will be the remainder when the original number is divided by 21?

SSC CHSL 2021

A)

13

B)

16

C)

14

D)

17

79)

The smallest six-digit number that is exactly divisible by 53 is:

SSC CHSL 2021

A)

100011

B)

100042

C)

100064

D)

100008

80)

The largest six-digit number exactly divisible by 243 is:

SSC CHSL 2021

A)

999945

B)

999943

C)

999947

D)

999949