Mathematical Reasoning & Thinking Skills OCF

Snow white can make 5 skirts every week.

At this rate, how many weeks will it take her to make 30 skirts?

Charlie Brown has a collection of leg warmers.

After collecting 10 leg warmers, the number of leg warmers in his collection triples.

How many leg warmers did Charlie Brown have in his collection at the start?

Jack Ryan started making a kite at 9:45 AM, and it took him 40 minutes to finish.

At what time did Jack Ryan finish making the kite?

Jack and Jill bought a large apple pie. 

If Jack ate 1/4 of the apple pie and Jill ate 1/3 of the apple, what fraction of the apple was left?

If yesterday was Wednesday, what day of the week will it be six days from today?

A rectangular playing field is twice as long as it is wide.

If the playing field has a perimeter of 30 metres, what is the area of the playing field?

Apollo had a collection of 72 harps.

After giving 24 of the harps to her sister, Artemis, what fraction of his harps did Apollo have left?

Cinderella picked 62 red roses and 44 white roses from her garden.

She used 32 of the roses to make a bouquet.

How many roses did she have left?

Kristoff cuts 300 ice blocks to build an ice wall for Elsa.

How many layers, each consisting of 10 ice blocks, can Kristoff lay for the ice wall?

Mr. Hamilton has an aluminium rod and an iron rod.

The iron rod is 44 centimetres longer than the aluminium rod.

If the iron rod is 96 centimetres long, what is the combined length of the two rods?

Marielle used the binary number system of coding to send a message to her sister Margaret. 

If the message “IMAGINATION” is written as:

100100  010101  101010  111100  100100  000111  101010  001100  100100  110011  000111

What is the code for MAGICIAN?

Angela and her family are going to Singapore for the holidays. Her mom asked her to choose 4 places where she wants to go. She gave her 4 lists and she can choose one from each.

Angela chose Universal Studios, Sentosa Cable Car, and Helix Bridge.

Which of the following places can she not include in her final choice?

Six friends: Adrian, Caleigh, Drake, Edward, Romeo, and Vivian went to the optical clinic to have their eyes checked. 

Each of them has a reserved check-up session with the doctor at different times. Each check-up session

begins when the previous check-up session ends. 

• Adrian’s session is after Caleigh’s.
• Either Caleigh or Adrian must be scheduled for the third check-up session.
• Vivian’s check-up session begins immediately after Romeo’s.
• Edward’s check-up session is either first or last. 

If Drake is the first to be checked, which of the following must also be true?

Choose a figure which would most closely resemble the unfolded form of figure (Z).

A key goal of socialisation in the educational context is to foster social competence in children. A kid must develop the social, emotional, and intellectual abilities necessary to function in the school setting. Social competence is gained in the educational context when children embrace and achieve socially sanctioned goals.

Which of the following statements expresses the main conclusion of the argument?

Joseph: “I want to become like Alexander Smith when I grow up. In the movie, he was a really good president, which is why I’m pretty sure that he would also be a good president in real life.”

Which of the following shows the mistake Joseph has made?

If the information above is true, whose reasoning is correct?

Athena: “I can still use CashCash without paying extra service charges if I have COVID-19.”

Mira: “If I don’t pay for the necessary service charges, I won’t be able to make transactions that require service charges.”

Jack: “I will drive at the speed I want. It’s either you stop complaining or you will never ride with me ever again.”.

Which of the following shows the mistake Jack has made?