11)

The sum of the two digits of a two-digit number is 13 and the number obtained by interchanging the two digits is 27 less than the original number. What is the original number?

SSC CHSL 2021

A)

85

B)

76

C)

94

D)

58

12)

A drum contains 40 litres of milk. One-fourth of the milk is taken out and replaced with water. Then, half of the mixture is taken out and replaced with water. What is the respective quantity of milk and water left in the drum?

SSC CHSL 2021

A)

10 litres and 30 litres

B)

25 litres and 15 litres

C)

15 litres and 25 litres

D)

20 litres and 20 litres

13)

A father’s age at the time of the birth of his son is the same as the present age of the son. If the age of the son was 15 years five years ago, then what is the current age of the father?

SSC CHSL 2021

A)

40 years

B)

35 years

C)

30 years

D)

45 years

14)

A total of 1012 candies are to be distributed among Virat, Ketan and Rohan in the ratio of 6 : 9 : 8, respectively. How many candies will Rohan get?

SSC CHSL 2021

A)

264

B)

352

C)

396

D)

450

15)

2 train tickets from Mohali to Delhi and 3 tickets from Mohali to Jammu cost ₹800. But 3 tickets from Mohali to Delhi and 2 tickets from Mohali to Jammu cost ₹700. What are the ticket prices for Delhi and Jammu, respectively, from Mohali?

SSC CHSL 2021

A)

₹100, ₹200

B)

₹200, ₹200

C)

₹100, ₹150

D)

₹200, ₹100

16)

There are three books coded as A, B and C. The price of book A is twice the price of book B and one-third the price of book C. If book C costs Rs. 84, then what are the costs of book A and book B, respectively?

SSC CHSL 2021

A)

Rs. 28 and Rs. 14

B)

Rs. 14 and Rs. 7

C)

Rs. 24 and Rs. 42

D)

Rs. 14 and Rs. 42

17)

The sales boy of a washing machine store charges his customers 24% more than the cost price. If a customer paid Rs. 6,200 for a washing machine, then what was the cost price of the washing machine?

SSC CHSL 2021

A)

Rs. 5000

B)

Rs. 6200

C)

Rs. 7200

D)

Rs. 5500

18)

A driver increases the speed of his vehicle by 5 km/h after every one hour. If the initial speed of the vehicle was 75 km/h, then what was the average speed of the vehicle in a journey of 4 hours?

SSC CHSL 2021

A)

83.75 km/h

B)

82.5 km/h

C)

82 km/h

D)

83 km/h

19)

The District Transport Authority has started special bus services for college going students. One bus starts from village P. The number of girls in the bus is one-fourth of the number of boys. In village Q, 20 boys leave the bus at their college stop and ten girls enter the bus. Now the number of boys and girls is equal. How many students enter the bus in the beginning?

SSC CHSL 2021

A)

50

B)

40

C)

30

D)

60

20)

A notebook costs ₹12 each. A pen costs ₹9 each. Tina spends ₹123 on a total of 11 pieces of these articles. How many notebooks did she purchase?

SSC CHSL 2021

A)

9

B)

6

C)

11

D)

8