Topics

General Knowledge
General Science
General English
Aptitude
General Computer Science
General Intellingence and Reasoning
Current Affairs
Exams
Elementary Mathematics
English Literature

The average weight of 38 students of a class was 44 kg. After 12 new students joined the class, the average weight increased by 4.68 kg. What is the average 5 weight of 12 new students who joined the class ? (in kg)

A) 61.5
B) 65
C) 63.5
D) 62
E) 65.5

Correct Answer:



C) 63.5

Description for Correct answer:
Total weight of 38 students = \( 38 \times }44 \) = 1672 Kg.

Total weight of (38+12) students = \( 50 \times 48.68 } \) = 2434 Kg.

Weight of 12 new students = 2434-1672 = 762 Kg.

Required average weight = \( 762 \div12 \) = 63.5 Kg.

Part of solved IBPS Clerk questions and answers : Exams >> Bank Exams >> IBPS Clerk

Comments

Similar Questions

1). Sonal's age 4 years hence will be equal to Radhika's age five years ago. If the respective ratio between Radhika's present age and Komal's present age is 3 : 2 and Komal's present age is 22 years, what is Sonal's present age ? (in years)

A). 33

B). 32

C). 24

D). 26

E). 21

2). 4/9th of the girls and 3/7th of the boys of a primary school participated in annual sports. If the number of participating students is 302 out of which 138 are boys, what is the total number of students in the primary school?

A). 677

B). 691

C). 723

D). 649

E). 711

3). A and B together can finish a piece of work in 12 days while B alone can do it in 30 days. In how many days can A alone finis the work ?

A). 10

B). 20

C). 50

D). 25

E). 35

4). 5120 1280 320 80 ?

A). 16

B). 20

C). 30

D). 40

E). 27

5). 8 17 42 91 ?

A). 170

B). 142

C). 140

D). 172

E). 180

6). 8 7 12 33 128 ?

A). 635

B). 465

C). 585

D). 495

E). 545

7). 982 977 952 827 822 ?

A). 779

B). 817

C). 789

D). 697

E). 797

8). 11 23 47 95 191 ?

A). 253

B). 323

C). 368

D). 383

E). 392

9). A,B and C started a business together. The respective ratio of investment of A and B was 7 : 9 and that of B and C was 18 : 11. All of them invested for equal period of time. If the total profit earned by them was Rs15,050/-. What was C's share of profit ?

A). Rs 3,850/-

B). Rs 4,350/-

C). Rs 4,150/-

D). Rs 3,700/-

E). Rs 3,650/-

10). The average of five consecutive odd numbers is 95. What is the fourth number in the descending order ?

A). 91

B). 95

C). 99

D). 97

E). 93