Questions

From Best to Worst

11 P5.ST.JC.18121191

Level 2
There are 4 girls and 5 boys.
The average height of the 4 girls is 155 cm.
The average height of 5 boys is 164 cm.
What is the average height of all the children?

2 m

Attempt

2 averages

12 P5.ST.JC.18121198

Level 2
The average height of 4 girls is 100 cm.
The average height of 5 girls is 110 cm.
Find the height of the fifth girl.

2 m

Attempt

2 averages

13 P5.DA.NK.23052601

Level 2
The graph shows the earnings that an apparel store made from January to May.

What was the total earnings from January to May?
How much money must be earned in June to have an average earnings of $3200 from January to June?

2 m

Attempt

Bar graph Average Money Time More than or less than

14 P5.ST.JC.18121199

Level 3
There are 4 girls and some boys.
The total height of the children is 1440 cm.
The average height of the 4 girls is 155 cm.
The average height of the boys is 164cm.
How many boys are there?

3 m

Attempt

2 averages

15 P5.ST.JC.18121192

Level 2
The average cost of 5 books is $30.
After another book that costs $90 is added,