Fill in the blanks.
Number of men at first is 25% of the adults.
Number of men is then increased to 65%.
- Number of men at first = _____ u
- Number of men in the end = _____ u
- Increase in the number of men = _____ u
- Number of adults in the end = _____ u
|
Men |
Women |
Before |
1 x 7 = 7 u |
3 x 7 = 21 u |
Change |
+ ? |
No change |
After |
13 x 3 = 39 u |
7 x 3 = 21 u |
(a)
Change percentage into units.
25% =
25100 =
14 65% =
65100 =
1320 Fraction of the adults who are women at first
= 1 -
14 =
34 Fraction of the adults who are women in the end
= 1 -
1320=
720 Number of women at first and in the end remains the same.
The number of women is the unchanged quantity.
LCM of 3 and 7 = 21
Number of men at first = 7 u
(b)
Number of men in the end = 39 u
(c)
Increase in the number of men
= 39 u - 7 u
= 32 u
(d)
Number of adults in the end
= 39 u + 21 u
= 60 u
Answer(s): (a) 7; (b) 39; (c) 32; (d) 60