Questions

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51 P6.AP.TL.17090784

Level 3 PSLE
In the figure, the square LMNO is made up of two parts, X and Y. The part, X, is formed by a semicircle and the line LM. The perimeter of X is 36 cm and the perimeter of the shaded part, Y, is 64 cm.

Find the perimeter of the square LMNO.
Find the area of the shaded part Y. (Take π =²²₇)

3 m

Video Attempt

52 P6.DE.TL.16010142

Level 3 PSLE
A crate filled with 35 mangosteens has a mass of 16.4 kg. The same crate when filled with 15 durians has a mass of 3.64 kg. The mass of 1 mangosteen is twice the mass of 1 durian. Find the mass of the crate when it is empty. Express the answer in g.

5 m

Video Attempt

Mass Unit conversion Times as many Repeated identity Units & parts & boxes Elimination

53 P6.DE.TL.16010143

Level 3
A briefcase with 5 magazines in it has a mass of 2.58 kg. When 6 more magazines and 22 guide books are added, the mass becomes 4.28 kg. Each magazine has a mass 2 times as much as each guide book. Find the mass of the briefcase when it is empty. Express the answer in kg.

5 m

Attempt

Mass Unit conversion More than or less than Times as many Repeated identity Units & parts & boxes Elimination

54 P6.RA.TL.16010149

Level 3
Henry's salary to Ken's salary is 5 : 7. The former saves $320 while the latter saves $232. If Ken's spending to Henry's spending is in the ratio of 8 : 5, what are Henry's and Ken's salaries respectively?
(a) Henry
(b) Ken

5 m

Video Attempt

Ratio to units Money All change Units table Units & parts Elimination

55 P6.RA.TL.16010130

Level 3
Mrs Lu had a total of 520 purple and yellow lilies in the ratio of 8 : 5. After she had given away 6 times as many purple lilies as yellow lilies, the number of purple and yellow lilies left was in the ratio of 10 : 9. How many more purple lilies than yellow lilies did she give away?

5 m

Video Attempt