Primary 6 Semester 2 math examination word problems with worked solutions.

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2. 6. Percentages
There were 140 more boys than girls in a school. 40% of the pupils were girls.
Find out the number of boys in the school.
Ans: 420
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3. 7. Patterns in Sequences
Analyse the pattern given below and find the symbols in questions (a) & (b).
Pattern … … < Δ π   < Δ π   < Δ π   < Δ …
Postion …… 11 … … … … … 17 … … … … … … … … … …
•Draw the symbol in Position 2.
•Draw the symbol in Position 103.
The repetitive pattern is < Δ π   which starts from posItions 1 to 5,
then again in position 6 to 10.
•The symbol in Position 2 is Δ.
•Position 103. 103 ÷ 5 = 20 remainder 3, or 3rd in pattern
The symbol in Position 103 is π .
Ans: (a) Δ
(b) π
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4. 8. Data Analysis To prepare for
an outdoor event, Mrs Tanya
bought red, blue, yellow, green and
orange umbrellas. The number of
umbrellas of each colour is shown
in the graph below.
•Find out the total number of
umbrellas Mrs Tanya bought?
•Mrs Tanya altogether spent
$58.50 on orange and green
umbrellas. Each orange umbrella
cost $0.50 more than green
umbrella. How much does each
orange umbrella cost?
•Total number of umbrella =
2 + 5 + 12 + 4 + 7 = 30
•u = price of green umbrella
11u = 58.50 – 3.50 = 55
u = $5
Orange umbrella = 5 + 0.5 = $5.5
Ans: (a) 30
(b) $5.5
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