Home
Class 11
MATHS
A factory employs 100 workers of whom 60...

A factory employs 100 workers of whom 60 in the first shift and 40 work in the second shift. The average wage of all the 100 workers is Rs. 38 If the average wage of 60 workers of the first shift is Rs. 40, then the average wage of the remaining 40 workers of the second shift is

A

35

B

40

C

45

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    PATHFINDER|Exercise QUESTION BANK|45 Videos

  • STRAIGHT LINE

    PATHFINDER|Exercise QUESTION BANK |25 Videos

Similar Questions

Explore conceptually related problems

There are 50 workers in a small industry. The dialy income of them is Rs. 9 Amongst them, the daily income of the 30 workers, working in the morning is Rs. 8 . Then find the daily average income of workers working in the evening.

An aeroplane flys around squares whose all sides are of length 100 miles. If the aeroplane covers at a speed of 100 mph the first side, 200 mph the second side 300 mph the third side and 400 mph the fourth side. The average speed of aeroplane around the square is

In an industrial establishment, the coefficients of variation of wages of male and female workers were 55% and 70% respectively. The standard deviations were Rs. 22 and Rs. 15.40 respectively. Calculate the combined average wages for all workers if 80% of the workers were male.

A workman agrees to accept certain wages for the first month, on the understanding that his pay is to be increased one rupee every subsequent month untill the maximum of Rs. 300 is reached. At the end of the month for which he received Rs. 300 for first time, he resigns and finds that his wages during his period of service have averaged Rs. 288 a month. How long has he served.

If 10 bulbs of 40 each and 3 of 100w each run on the average for 5 hours a day, calculater the monthly bill.1 bot unit costs Rs2. (1 month = 30 d)

A house is fiited with 2 lamps rated 60 w , 2 lamps rated 100 W each 3 fans rated 40 W each . If all the appliances run simultaneously by 200 V supply voltage , determine the magnitude of current that will be drawn from the mains . If each lamp works 5 h and each fan 15 H daily , calculate the monthly expenditure . ( 1 month = 30 d , cost of 1 BOT unit Rs . 2 )

Two plants A and B of a factory show following results about the number of workers and the wages paid to them. {:(,A,B),("No. of workers",5000,6000),("Average monthly wages","Rs 2500","Rs 2500"),("Variance of distribution of wages",81,100):} In which plant, A or B is there greater variability in individual wages?

An analysis of monthly wages paid to workers in two firms A and B, belonging to the same industry, gives the following results: {:(,"Firm A","Firm B"),("No. of wage earners",586,648),("Mean of monthly wages","Rs 5253","Rs 5253"),("Variance of the distribution",100,121):} (i) Which firm A or B pays larger amount as monthly wages? (ii) Which firm, A or B, shows greater variability in individual wages?

PATHFINDER-STATISTICS AND MATHEMATICAL REASONING-QUESTION BANK
  1. (x1-overlinex)+(x2-overlinex)+....+(xn-overlinex)=

    Text Solution

    |

  2. If the mean of the table is 8, then find the value of P.

    Text Solution

    |

  3. A factory employs 100 workers of whom 60 in the first shift and 40 wo...

    Text Solution

    |

  4. Geometric mean of 3, 9 and 27 is

    Text Solution

    |

  5. The median of the items 6, 10, 4, 3, 11, 22, 18, is

    Text Solution

    |

  6. If median = (mode + 2 mean ) Mean, then Mean is equal to

    Text Solution

    |

  7. The scores of a batsman in ten innings are : 38, 70, 48, 34, 42, 55, 6...

    Text Solution

    |

  8. The Standard Deviation of scores 1, 2, 3, 4, 5 is

    Text Solution

    |

  9. If the mean of the first n odd natural numbers be numbers itself, then...

    Text Solution

    |

  10. The A.M of the series 1, 2, 4, 8, 16…., 2^n is

    Text Solution

    |

  11. If the mean of the numbers x1, x2, x3,….xn is overlinex, then the mea...

    Text Solution

    |

  12. Mean of the first n terms of the A.P a,(a+d),(a+2d),…..is

    Text Solution

    |

  13. If mu is the mean of a distribution , then sumfi(yi-mu) is equal to

    Text Solution

    |

  14. If the mean of n observations 1^2, 2^2, 3^2,….n^2 is (46n)/(11) then ...

    Text Solution

    |

  15. The mean of 50 observations is 36. If two observations 30 and 42 are d...

    Text Solution

    |

  16. the weighted mean of first n natural numbers whose weights are equal ...

    Text Solution

    |

  17. A group of 10 items has mean 6 If the mean of 4 of these items is 7.5 ...

    Text Solution

    |

  18. The mean of a set of observations is overlinex If observations is div...

    Text Solution

    |

  19. The geometric mean of the first n terms of the G.P. a,ar,ar^2,….is

    Text Solution

    |

  20. The geometric mean of the observations 2, 4, 8, 16, 32, 64, is

    Text Solution

    |