PSLE Look at the graph and answer the following questions.
- How many notebooks did the shop sell in August?
- The number of notebooks sold in November was an 10% decrease from the number sold in October. How many notebooks were sold in November?
(a)
Number of notebooks sold in August = 50
(b)
Total number of notebooks sold in November as compared to October
= 100% - 10%
= 90%
100% → 30
1% → 30 ÷ 100 = 0.3
90% → 90 x 0.3 = 27
Number of notebooks sold in November = 27
Answer(s): 50; (b) 27