Question

1
0% - 40% = 60%.
TRY THESE
In a primary school, the parents were asked about the number of hours they spend per day
in helping their children to do homework. There were 90 parents who helped for
hour
1
2
to 12
15 hours. The distribution of parents according to the time for which,
they said they helped is given in the adjoining figure: 20% helped for
1
hours per day;
2
1
1
30% helped for hour to 15 hours; 50% did not help at all.
2
Using this, answer the following:
helped for
(1) How many parents were surveyed?
hour to
(i) How many said that they did not help?
(i) How many said that they helped for more than 1 hours?
2
did not
help at all
more than 1
50%
-30%
20%
įhour
1 hour
Helped for more
1
than 1 hour​

Answer 1

Answer:

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