Hi, thanks to Dharma and small.

Can you see this question too?

Mr F drove from home to work at 60km/h . After work, he needed to rush home for dinner and increased his speed on his way home by 30 km/h. As a result, he tool 5 minutes less than what he had taken on his way to work. What was the distance between his house and office?

Ans given: 15km

I think should be 90km.

Rahim bought some key chains at 90 cents each. He sold them at $3.50 each at a 3-day charity fair. From the second day onwards, for every 4 key chains sold, 1 key chain would be given free. At the end of the fair, a total of 208 free key chains were given away. After deducting the amount of money that Rahim has paid for the key chains, the money collected for the charity was $2441.40. How many key chains were sold individually on the first day?


Ans: 179 keychains

can explain step by step? thanks!!

Hi,


Please help:

Russel delivered 7348 cartons of eggs to several supermarkets. For every carton of eggs safely delivered, he would have paid 80 cents. However, for every damaged carton, he would have to pay $1.40. Russel was paid a total of $5396.60

(a) How many cartons of eggs were damaged?
(b) How many cartons of eggs were delivered safely?

Ans: 219
Ans: 7129

Can you please explain step by step?

Hi to all gurus,


I need help!

Q1) Rectangle ABCD is divided into 9 small identical rectangules as shown. The perimeter of rectangle ABCD is 92cm. Find the area of 1 small rectangle.

Answer: 56 cm(square) - how to get to answer? I cannot upload image. if somebody can help, please pm me !! thanks!!!

Q2) 1 + 2+ 3 + 4 + … + 94 + 96 + 96 + 97
When the first 97 whole numbers are added up, what is the digit in the ones place of this total?

Answer: 4753 (is there a shortcut to do this question?)

Q3) A set of dictionaries which fitted exactly 4 shelves, each 2.05m long, was replaced by a new set. Every 7 old dictionaries was replaced by 4 new ones, each 5 cm thick. If the new set of dictionaries also fitted the 4 shelves exactly, what was the difference in the number of books between the two sets?

Answer: 120 dictionaries

Hi to all gurus,


I have 2 questions.
Q1) 144 marbles are divided equally among some children. If there were 4 children fewer, each child would have 18 marbles. How many children are there?

Q2) A group of 145 girl guides and 306 boy scouts were selected to performance at the National Day Parade. Two days prior to the performance, one of the girl guides sprained her ankle and had to withdraw from the performance. The remaining girl guides and boy scouts are to be divided into groups such that each group contains x girl guides and y boy scouts.

Q2a) What is the largest number of groups that could be formed?
Q2b) Hence, state the value of x and y.

Answer to Q1) I don’t have but I work out to be 16 by guess check.
Answer to Q2a) 18
Answer to Q2b) x = 8, y = 17

Thanks to small, Dharma, VanillaCake!

Guru,


The question is like this:
A mechanical pencil cost $8. A pen cost 25% more. Jason paid $210 for some mechanical pencils and pens. 80% of what he bought were mechanical pencils. How many more mechanical pencils than pens did he buy?

Answer: 15

I keep getting 30. Is my answer wrong or given answer wrong? Please show me step by step again? Thanks.

Thank you Maths Monster and Dharma.

Hi, as a parent, I will think that we also need to play a role in our children’s learnings be it in school or at tuition.


I agree it is quite absurd for the tutor to say that but I also agree that the situation the tutor has said that was because the child could be really very slow. I am sure the tutor could not have said that in a demanding way? I mean this is Singapore, people I meet are reasonable and cordial.

Guru, can you tell me how to solve for this question?


Tom and Jerry went shopping with a total of $198. Tom had $10 more than Jerry. Tom spent 25% as much money as Jerry. After which, he had twice as much money left as Jerry.
(a) How much money did Tom bring for shopping?
(b) How much money had Tom left after shopping?

Answer to part (a) is $104
Answer to part (b) is $92

Can you tell me how to reach the answer especially part (b)?
My child needs to pass up his work tomorrow. Hope to hear from you soon!