Fill in the blanks.
Adam receives some allowance.
If he increases his spending by 30%,
his savings decreases by 60%.
- Amount of spending = _____ u
- Amount of savings = _____ u
- Total amount of allowance = _____ u
- Difference in the amount of spending and savings = _____ u
|
Spending |
Savings |
Before |
10 x 1 = 10 u |
5 x 1 = 5 u |
If change |
+ 3 x 1 = + 3 u |
- 3 x 1 = - 3 u |
After |
13 x 1 = 13 u |
2 x 1 = 2 u |
(a)
Change percentage into units.
30% of spending = 60% of savings
310 of spending =
35 of savings
Make the numerators the same.
LCM of 3 and 3 = 3
3 x 110 x 1 of spending =
3 x 15 x 1 of savings
310 of spending =
35 of savings
Amount of spending = 10 u
(b)
Amount of savings = 5 u
(c)
Total amount of allowance
= 10 u + 5 u
= 15 u
(d)
Difference in the amount of spending and savings
= 10 u - 5 u
= 5 u
Answer(s): (a) 10; (b) 5; (c) 15; (d) 5