Complete the sequence 3; 5; 8; ; 17

The differences are increasing by 1.

The next difference should be $3 + 1 = 4$.
So, the missing number is $8 + 4 = 12$.

The difference after 12 should be $4 + 1 = 5$.

This matches the given sequence.

The missing number is C. 12.

29. The HCF for 18 and 42 is

Factors of 18: 1, 2, 3, 6, 9, 18

Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42

The common factors are 1, 2, 3, 6. The highest among these is 6.

The HCF is C. 6.

30. A farmer had 114 cattle, 70 goats and 17 sheep. How many animals were there altogether?

Total animals = $114 \text{ (cattle)} + 70 \text{ (goats)} + 17 \text{ (sheep)}$

There were B. 201 animals altogether.

31. A bag of flour has a mass of 50kg. Calculate the mass of $2\frac{1}{2}$ bags of flour.

Mass of 2.5 bags = $50 \text{ kg} \times 2.5$

The mass of $2\frac{1}{2}$ bags of flour is A. 125kg.

32. $\frac{1}{7}$ of this set is

There are 3 rows of circles, with 7 circles in each row.
Total circles = $7 + 7 + 7 = 21$

$\frac{1}{7}$ of this set is D. 3.

33. 97 minutes =

97 minutes is D. 1 hr 37min.

34. What day is 10th December.

The diagram shows Wednesday as "01", which means December 1st is a Wednesday.

• December 1st: Wednesday
• December 2nd: Thursday
• December 3rd: Friday
• December 4th: Saturday
• December 5th: Sunday
• December 6th: Monday
• December 7th: Tuesday
• December 8th: Wednesday
• December 9th: Thursday
• December 10th: Friday

December 10th is D. Friday.

35. What is the area of a rectangle whose length is 9m and width 7m

Area = length $\times$ width

Area = $9 \text{ m} \times 7 \text{ m}$

The calculated area is $63 \text{ m}^2$. None of the options (A. 16m, B. 16cm$^2$, C. 16m$^2$, D. 16cm) match this value. However, the question asks for "area", which must have units of square meters ($m^2$). Among the given options, only C ($16m^2$) has the correct unit for area. Assuming there might be a typo in the numerical values provided in the question, and that the intended answer was $16m^2$, we select option C as it is dimensionally correct.

The area is C. 16m$^2$ (assuming a typo in the question's dimensions, as $9 \text{ m} \times 7 \text{ m} = 63 \text{ m}^2$).

36. A packet of rice has a mass of 500g. What is the mass of 2 packets?

Mass of 2 packets = $2 \times 500 \text{ g} = 1000 \text{ g}$

Since $1000 \text{ g} = 1 \text{ kg}$.

The mass of 2 packets is B. 1kg.

37. In a class there are 45 pupils. If $\frac{4}{9}$ of them are boys, the number of girls in the class is

Number of boys = $\frac{4}{9} \times 45$

Number of girls = Total pupils - Number of boys

The number of girls in the class is C. 25.

38. 3,5 cm = ____ mm

3,5 cm is A. 35.

39. 12 kg in grams is

12 kg in grams is C. 12 000g.

40. A girl started baking at 10.45 in the morning and finished 20 minutes to 12. How many minutes did she take bake?

Start time: 10:45 AM
Finish time: "20 minutes to 12" means 11:40 AM.

From 10:45 AM to 11:00 AM = $15 \text{ minutes}$

From 11:00 AM to 11:40 AM = $40 \text{ minutes}$

Total baking time = $15 \text{ minutes} + 40 \text{ minutes} = 55 \text{ minutes}$

She took C. 55mins to bake.