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- Question
- The average salary of Rajesh, Bahadur and Amir is Rs. 8000 per month. The average expenditure of Rajesh , Bahadur and Amir per month is Rs. 5000. The average savings of all the 3 persons per month is
Options- A. Rs. 3000
- B. Rs. 5000
- C. Rs. 2500
- D. Rs. 9000
- Correct Answer
- Rs. 3000
ExplanationAverage saving
= Average Income - Average Expenditure
= 8000 - 5000 = 3000
- 1. The average salary of A, B is Rs. 6000 and that of C, D and E is Rs. 8000. The average salary of all the 5 people is
Options- A. Rs.7200
- B. Rs. 7000
- C. Rs. 7500
- D. can't be determined Discuss
- 2. In a flower shop there were 6 flowers in each bouquet. If the seller has doubled the number of flowers in each bouquet then the new average of flowers in each bouque is
Options- A. 12
- B. 3
- C. 8
- D. none of these Discuss
- 3. The average number of shirts with Salman, Ambani and Dalmiya is 60, if all of them reached a shopping mall in Delhi and purchased 6 shirts each of them then average number of shirt each of them now has
Options- A. 66
- B. 63
- C. 62
- D. can't be determined Discuss
- 4. A, B, C, D, E, F are the only six families in Indira Nagar. A, B, C, D, E and F has 7, 8, 10, 13, 6, and 10 member in their families respectively. If 1 member from all the six families left their respective families to accommodate themselves in the hostel of IIM Lucknow, then the average number of member now in each family of Indira nagar is
Options- A. 8
- B. 9
- C. 10
- D. 13 Discuss
- 5. A, B, C, D, E are the five electronic shops in the Naza market, which have 20, 30, 60, 80 and 50 T. V . sets with them respectively, then the average number of T. V. sets in each shop is
Options- A. 24
- B. 48
- C. 50
- D. 60 Discuss
- 6. The average salary of A, B and C is Rs.10,000 and average expenditure of A is Rs. 6000 then the average savings of B and C is
Options- A. Rs. 5500
- B. Rs. 4500
- C. Rs. 4000
- D. can't be determined Discuss
- 7. The average salary of all the 60 employees in an office is Rs. 12,000 per month. if the number of executives is twice the number of non executives employees, then the average salary of all the non executives employees is
Options- A. Rs. 9000
- B. Rs. 8000
- C. Rs. 6000
- D. can't be determined Discuss
- 8. Einstein goes from Ahmedabad To Lucknow at the speed of 40 km/hr and returned at the speed of 60 km/hr .the average speed of Einstein during the whole journey is
Options- A. 48 km/hr
- B. 24 km/hr
- C. 50 km/hr
- D. none of these Discuss
- 9. The average age of A,B,C,D and E is 40 years.The average age of A and B is 35 years and the average age of C and D is 42 years .The age of E is
Options- A. 46
- B. 48
- C. 32
- D. none of these Discuss
- 10. Find the average of 308, 142, 160, 245 and 25.
Options- A. 176
- B. 178
- C. 175
- D. 174 Discuss
Average problems
Search Results
Correct Answer: Rs.7200
Explanation:
Required average salary
= ( 6000 x 2 + 8000 x 3) / (2 + 3 )
= 36000 / 5
= Rs. 7200
Correct Answer: 12
Explanation:
Now required average
= old average x Multiplicand
= 6 x 2 = 12
Correct Answer: 66
Explanation:
Required average
= Old average + New average
= 60 + 6 = 66
Correct Answer: 8
Explanation:
Required average
= (( 7 - 1 ) + ( 8 - 1 ) + ( 10 - 1 ) + ( 13 - 1 ) + (6 - 1) +( 10 - 1 ) )/ 6
= ( 7 + 8 +10 + 13 + 6 + 10 ) / 6 - ( 6 x 1 ) / 6
=9 - 1 = 8
Correct Answer: 48
Explanation:
Average number of T. V. sets
= ( 20 + 30 + 60 + 80 + 50 ) / 5
= 48
Correct Answer: can't be determined
Explanation:
Total income = Total expenditure + Total savings
We are not find the average savings of B and C, Since data is insufficient.
Correct Answer: can't be determined
Explanation:
No. of executives / No. of non- executives
= 2 / 1
Therefore
Number of executives = 40
and number of non executives employees = 20
now , go through the options
Total salary = 40 x salary of executives + 20 x salary of non-executives
60 x 12000 = 40 x k + 20 x l, here k, l are unknowns
so we con't determine the required average salary
Correct Answer: 48 km/hr
Explanation:
Average speed =2 x 40 x 60 / ( 40+ 60)
= 4800 / 100
= 48 km/hr
Correct Answer: 46
Explanation:
Age E = ( A + B + C + D + E ) - [ ( A + B ) + ( C + D ) ]
= ( 40 x 5 ) - [ ( 35 x 2 ) + ( 42 x 2 )]
=200 - ( 70 + 84)
= 200 - 154
= 46
Correct Answer: 176
Explanation:
sum of observations
= 308 + 142 + 160 245 + 25 = 880
Average = Sum of all observations / Number of observations
=880 / 5
=176
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