Question

35. A washing machine company makes two types of washing machines;
Top-loaded and Front- loaded machines. At the end of the daily
production, the washing machines are tested and those with faults are
removed and sent for repair.
The following table shows the average number of washing machines of
each type that are made per day, and the average percentage of faulty
machines pre day.
Machine Type
Average number of
Machines made per
day
1000
2000
Average percentage
of faulty machines
per day
2%
2.5%
Top loaded machine
Front loaded
machine
Question 1:-
What is the average number of faulty machines produced by the
company in a day?
2
Question 2:-
Shubhi predicts that if there is a batch of 100 Top loaded machines,
exactly 2 will be faulty.Is Shubhi's preciction correct or incorrect?
2​

Answer 1

Answer:

1) 1 / 50

2) correct

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Answer 2

Answer:

The answers are as follows

Step-by-step explanation:

1) to find the average number of  faulty machines produced by the company in a day

          from question it's given that

for top loaded,

      machine made = 1000

   percentage of fault = 2%

  so the number of fault machine = 2% of 1000

                                                       = $\frac{2}{100}$ × 1000

                                                       = 20 ( ∵ 100 and 1000 gets divided and we get 10)

   number of fault top loaded machine = 20

for front loaded,

machine made = 2000

   percentage of fault = 2.5%

  so the number of fault machine = 2.5% of 2000

                                                       = $\frac{2.5}{100}$ × 2000

                                                       = 50 ( ∵ 100 and 2000 gets divided and we get 20)

   number of fault front loaded machine = 50

∴ total number of fault machine = 20 + 50

                                                     = 70

2) Shubhi is absolutely right for top  loaded machine , but not for front loaded .