Fill in the blanks.
Number of men at first is 15% of the adults.
Number of men is then increased to 50%.
- 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 |
3 x 1 = 3 u |
17 x 1 = 17 u |
Change |
+ ? |
No change |
After |
1 x 17 = 17 u |
1 x 17 = 17 u |
(a)
Change percentage into units.
15% =
15100 =
320 50% =
50100 =
12 Fraction of the adults who are women at first
= 1 -
320 =
1720 Fraction of the adults who are women in the end
= 1 -
12=
12 Number of women at first and in the end remains the same.
The number of women is the unchanged quantity.
LCM of 17 and 1 = 17
Number of men at first = 3 u
(b)
Number of men in the end = 17 u
(c)
Increase in the number of men
= 17 u - 3 u
= 14 u
(d)
Number of adults in the end
= 17 u + 17 u
= 34 u
Answer(s): (a) 3; (b) 17; (c) 14; (d) 34