PSLE Look at the graph and answer the following questions.
- How many highlighters did the shop sell in September?
- The number of highlighters sold in November was an 80% increase from the number sold in October. How many highlighters were sold in November?
(a)
Number of highlighters sold in September = 15
(b)
Total number of highlighters sold in November as compared to October
= 100% + 80%
= 180%
100% → 15
1% → 15 ÷ 100 = 0.15
180% → 180 x 0.15 = 27
Number of highlighters sold in November = 27
Answer(s): (a) 15; (b) 27