Questions

From Worst to Best

166 P6.RD.TL.16010138

Level 3
¹₅ of the guests at a stadium were women. 80% of the remaining guests were men and the rest were children. The number of men was 476 more than the total number of women and children. After some men left the stadium, 20% of the guests that remained were men. How many men left the stadium?

4 m

Attempt

Fraction to units Percent to units Percent of different bases More than or less than Remainder concept All change Units table Units manipulation Units & parts Substitution

167 P6.RD.TL.16010148

Level 3
Vincent and George had 852 notebooks together. Vincent had 210 more notebooks than George. Both of them sold some of their notebooks. George sold 20% less notebooks than what Vincent sold. In the end, George had half as many notebooks left as Vincent. How many notebooks had Vincent left?

4 m

Attempt

Fraction to units Percent to units More than or less than All change Units table Units & parts Elimination

168 P6.PC.TL.16010110

Level 3
25% of the people are performers for a concert and the rest are spectators. 60% of the spectators are adults and there are 420 less child spectators than adult spectators. How many adult spectators must join so that 56% of the people are adult spectators?

4 m

Attempt

Percent of a set Percent to units Percent of different bases More than or less than Remainder concept Combined repeated identity Unchanged quantity Units table Units manipulation

169 P6.PC.TL.16010117

Level 3
A basket contained violet and purple buttons. There were 60% more violet buttons than purple buttons. When 248 more buttons were poured into the basket, the amount of violet buttons increased by 40% and the amount of purple buttons grew by 60%. How many buttons were in the basket at first?

4 m

Attempt

Percent change by Percent to units Percent of different bases More than or less than All change Unit table Decimal Units

170 P6.VO.NK.17053168

Level 3
The figure is not drawn to scale. It shows a tank made from two connected cubical containers, Cube A and Cube B. The tank is filled with some water. Cube A is ³₄ filled with 6000 mℓ of water while Cube B is completely filled with water. The height of the water level in Cube A is 4 cm higher than that in Cube B. Water is then drained from the tank and the height of the new water level is 5 cm. What is the volume of the water drained in mℓ?