PSLE Math 2021 Paper 2 Question 11
The answers below are from our Ten-Year-Series Programme, where our Principal Tutors will be covering the past 10 years of PSLE Math Papers (2014-2023). If you found this helpful and would like detailed video explanations to further aid your understanding, we encourage you to register for our Ten-Year-Series Programme.
The Ten-Year-Series Programme is a part of our Math Bundle, which includes:
1. Ten-Year-Series Programme
2. Math Intensive Camp
3. Mock Exams
The majority of our P6 Students will register for our Last Lap Programme, which includes our Signature Math Programme and the Math Bundle.
To get answers to PSLE Math Paper 1, join our Telegram Channel.
(Quiz Girls and Boys Ratio Question)
PSLE Math 2021 Paper 2 Question 11
a) Ans: 9:13
Boys in Group P -> 30/100 ×7u = 2.1u
Boys in Group Q -> 7u - 2.1u = 4.9u
Girls in Group P -> 60/100 ×4u = 2.4u
Girls in Group Q -> 4u - 2.4u = 1.6u
b) Ans: 330
No. of boys in Group P → fewer than 70
Multiples of 21 → 21, 42, 63 (largest possible multiple of 21 & less than 70)
21u → 63
1u → 63 ÷ 21 = 3
21u + 49u + 24u + 16u = 110u
110u → 3 × 110 = 330