BANK & INSURANCE (AVERAGE) PART 1

Total Questions: 45

41. Total age of 34 girls is 967. The average of first 25 of them is 17 years than find average age of others girls?

Correct Answer: (e) 60.2
Solution:Total age of first 25 students is=25 × 17=425
Total age of others girls is=967-425=542
So average age of 9 girls is=60.2

42. Six table and eleven chairs were brought in 9600. Average price of chair is 550, then find average table price?

Correct Answer: d) 591.6  
Solution:Total price of 11 chair is=11 × 550=6050
Total price of six table is=9600-6050=3550
Average price of chair is=3550/6=591.6

43. Average age of 32 boys is 14 years and average age of 28 girls is 13 years. What is average age of whole class?

Correct Answer: (c) 13.53
Solution:

Total age of 32 boys is 32 × 14=448

Total age of 28 girls is=28 × 13=364
Total age of 60 student is=448+364=812
So average is=812/60=13.53

44. The sum of five numbers is 984. The average of first two numbers is 292 and the average of last two numbers is 198. What is the third number?

Correct Answer: (b) 4  
Solution:Sum first two number is=292 × 2=584
Sum of last two number is=198 × 2=396
Third number is=984-584-396=4

45. Total marks obtained by a student in Math, Science and English together is 120 more than marks obtained by him in English. What is the average marks obtained by him in others two subject?

Correct Answer: (a) 60  
Solution:Let marks in English is= x
So, math+science+x=x+120
So, math+science=120
So average marks these subject =120/2=60