Q11
Ivan bought strawberry cakes and cheese cakes for a party. He spent $112 on the cakes. Each piece of strawberry cake cost $2.50 and each piece of cheese cake cost 40% more than each piece of strawberry cake. 30% of what he bought were cheese cakes. How many pieces of cheese cake did he buy?

Q12
Eileen and Pauline each have some marbles. If Eileen gives 36 marbles to Pauline, both of them will have the same number of marbles. If Pauline gives 12 marbles to Eileen, the number of marbles that Eileen has to the number of marbles Pauline has will be 5 : 1. How many marbles does Eileen have?

Q13
Janice is driving to town. If she drives at an average speed of 60 km/h, she will reach town at 12.30 p.m. If she drives at a higher average speed of 80 km/h, she will reach town at 11.45 a.m. At what average speed should she be driving so that she will reach town at 12 noon?

Q14
A sum of money is shared among the 3 siblings, Joey, Jocelyn and Raymond. Joey has 20% more than Jocelyn and Raymond’s share is 1 2/5 times of Jocelyn’s share. If Joey has $3 600, how much does Raymond have?

Q15
Kim, Lin, Ming and Nan shared a sum of money. Kim received 25% of the total sum of money. Lin received 40% of the total sum of money received by Ming and Nan. Nan received half as much as Ming. Lin and Ming received $480 altogether.
(a) Find the sum of money shared by the four persons.
(b) How many percent more of the sum of money did Ming receive than Kim? Give your answer correct to the nearest whole number.

Q16
In a survey, 20% of the people are working adults and the rest are unemployed. 65% of the unemployed are females and there are 1200 more unemployed females than unemployed males. How many unemployed females should opt out of the survey so that only 40% of the people surveyed are unemployed females?

Q17
Bryan bought 8 files and 5 pens. Darren bought 5 files and 8 pens. Darren paid $3.60 less than Bryan. If a pen cost $1.50, how much did a file cost?

Q18
The ratio of the number of boys to the number of girls in an Athletic CCA is 5: 3. In every training session, each boy has to run 4 rounds while each girl has to run 3 rounds. If a total of 324 rounds are run, how many children are there in the Athletic CCA?

Q19
The number of girls in a school was 40% of the number of boys.
On a Fund Raising Day, each girl decided to donate $3 while each boy decided to donate $2. A total of $1904 was collected.How many girls were in the school?

Q20
Mother gave Jaclyn and Peter $455 to buy some books.
Jaclyn was given $85 more than Peter.
At the bookshop, Jaclyn spent twice as much as Peter.
Peter was left with 3 times as much money as Jaclyn.
How much did Jaclyn spend?