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 20% 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% + 20%
= 120%
100% → 50
1% → 50 ÷ 100 = 0.5
120% → 120 x 0.5 = 60
Number of highlighters sold in November = 60
Answer(s): (a) 15; (b) 60