Quiz Discussion

Four years ago, the average age of a family of four persons was 18 years. During this period, a baby was born. Today if the average age of the family is still 18 years, the age of the baby is

Course Name: Quantitative Aptitude

  • 1] 1.2 years
  • 2] 2 years
  • 3] 2.5 years
  • 4] 3 years
Solution
No Solution Present Yet

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# Quiz
1
Discuss

Ajay working in a Cellular company as a salesman. His monthly salary is Rs. 200. But he gets bonus as per given rule. If he sells sim cards of Rs. X then his bonus will be   . In the first quarter of the year his average sale was Rs. 3000 per month. In the next 5 five month his average sale was Rs. 5000 per month and for next four month his average sale was Rs. 8000 per month. What is the average earning per month for the whole year?

 

  • 1] Rs. 3350
  • 2] Rs. 3610
  • 3] Rs. 3750
  • 4] Rs. 3560
  • 5] None of these
Solution
2
Discuss

What is the average of the first six (positive) odd number each of which is divisible by 7?

  • 1] 42
  • 2] 43
  • 3] 47
  • 4] 49
Solution
3
Discuss

The average of five numbers is 306.4. The average of the first two numbers is 431 and the average of the last two numbers is 214.5. What is the third number?

  • 1] 52
  • 2] 108
  • 3] 321
  • 4] Cannot be determined
  • 5] None of these
Solution
4
Discuss

Out of 9 persons, 8 persons spent Rs. 30 on each of their meals. The ninth one spends Rs. 20 more than the average expenditure of all the nine. The total money spent by all of them was

  • 1]

    Rs 260

  • 2]

    Rs 290

  • 3]

    Rs 292.5

  • 4]

    Rs 400.5

Solution
5
Discuss

Find the average of 1.11, 0.01, 0.101, 0.001, 0.11 = ?

  • 1] 0.2664
  • 2] 0.2554
  • 3] 0.1264
  • 4] 0.1165
Solution
6
Discuss

The average weight of 8 men is increased by 1.5 kg when one of the men, who weight 65 kg is replaced by a new man. The weight of the new man is-

  • 1] 70 kg
  • 2] 74 kg
  • 3] 76 kg
  • 4] 77 kg
Solution
7
Discuss

The average expenditure of a man for the first five months is Rs. 1200 and for the next seven months is Rs. 1300. If he saves Rs. 2900 in that year, his monthly average income is-

  • 1] Rs. 1500
  • 2] Rs. 1600
  • 3] Rs. 1700
  • 4] Rs. 1400
Solution
8
Discuss

If the arithmetic mean of 0, 5, 4, 3 is a, that of -1, 0, 1, 5, 4, 3 is b and that of 5, 4, 3 is c, then the relation between a, b, and c is

  • 1] a = b = c
  • 2] a : b : c = 3 : 2 : 4
  • 3] 4a = 5b = c
  • 4] a + b + c = 12
Solution
9
Discuss

The average of five different positive numbers is 25. x is the decrease in the average when the smallest number among them is replaced by 0. What can be said about x?

  • 1] x is less than 5
  • 2] x is greater than 5
  • 3] x is equal to 5
  • 4] Cannot be determined
Solution
10
Discuss

Five years ago, the average age of A, B, C and D was 45 yr. with E joining them now, the average of all the five is 49 yr. How old is E?

 

  • 1] 25 years
  • 2] 40 years
  • 3] 45 years
  • 4] 64 years
Solution
# Quiz