Tutor MathsGuru: Ask me for your burning Maths questions!

[jieheng]

Chan09:

3) Lim was reading a book. On the first day, the number of pages he read was 2/5 of the number of pages unread. On the second day, he read another 24 pages. As a result, the number of pages he read was 5/9 of the number of pages unread. If he had to complete reading the book in another 4 days, what was the average number of pages he had to read a day for the rest of the book? ( ans: 54 pages)

Read Unread Total
2u 5u 7u

+24pages -24pages

5u 9u 14u

Since the total units of books should be the same , change the total units of books to 14u

Read Unread Total
4u 10u 14u

+24pages -24pages

5u 9u 14u

5u - 4u = 24
1u = 24

Total number of pages unread = 9u = 9 * 24 = 216

The average number of pages he had to read a day for the rest of the book = 216 / 4 = 54 pages (Ans)

[Chan09]

Thank you :lol:

[jieheng]

Chan09:

Thank you :lol:

Hi Chan09 ,

You are welcome.

Regards,

[violet04]

Need help from the experts here…


1) Amy paid $56 for 1 turkey and 4 chickens. The turkey cost as much as 3 chickens. How much did the turkey cost?

2) Sharon paid $28 for 1 duck and 3 chickens. Betty paid $40 for 1 duck and 5 chickens. What much did a chicken cost?

[Brenda10]

violet04:

Need help from the experts here..


1) Amy paid $56 for 1 turkey and 4 chickens. The turkey cost as much as 3 chickens. How much did the turkey cost?

2) Sharon paid $28 for 1 duck and 3 chickens. Betty paid $40 for 1 duck and 5 chickens. What much did a chicken cost?

Hi, not expect lah but give a try:

1) 1 turkey = 3 chicken

1t + 4c = $56
3c + 4c = $56
7c = $56
1c = $8

Therefore, 1t = $8 x 3 = $24



Hope the above help.

[violet04]

Brenda10:

violet04:

Need help from the experts here..


1) Amy paid $56 for 1 turkey and 4 chickens. The turkey cost as much as 3 chickens. How much did the turkey cost?

2) Sharon paid $28 for 1 duck and 3 chickens. Betty paid $40 for 1 duck and 5 chickens. What much did a chicken cost?

Hi, not expect lah but give a try:

1) 1 turkey = 3 chicken

1t + 4c = $56
3c + 4c = $56
7c = $56
1c = $8

Therefore, 1t = $8 x 3 = $24



Hope the above help.

Hi Brenda,
Thks for your guidance. The answer is 24.
Can't imaging this is P2 question....

[Brenda10]

violet04:

Brenda10:

[quote=\"violet04\"]Need help from the experts here..


1) Amy paid $56 for 1 turkey and 4 chickens. The turkey cost as much as 3 chickens. How much did the turkey cost?

2) Sharon paid $28 for 1 duck and 3 chickens. Betty paid $40 for 1 duck and 5 chickens. What much did a chicken cost?

Hi, not expect lah but give a try:

1) 1 turkey = 3 chicken

1t + 4c = $56
3c + 4c = $56
7c = $56
1c = $8

Therefore, 1t = $8 x 3 = $24



Hope the above help.

Hi Brenda,
Thks for your guidance. The answer is 24.
Can't imaging this is P2 question....[/quote]
Hi violet04

You're welcome. I think the standard is getting tougher compare to few years back.

BTW, the following is the Q2 working:

Information from question:
1d + 3c = $28
1d + 5c = $40

1d + 3c + 2c = $40
$28 + 2c = $40
2c = $40 - $28
2c = $12
1c = $6

Therefore, one chicken costs $6.00

Hope the above help.

[wahwah]

Hi,

Need help with the following Math problems. Many thanks in advance.

1. Alvin’s monthy income is $250 more than Clare but their monthly expenditures are the same. Over a certain period of time, Alvin has saved $1350 and Clare has only $600. Given that each of them spent $500 a month,
(a)How long did Clare take to save $600?
(b)What is Alvin’s monthly income?

2. Mary and Jason each have some money. If Mary spent $80 per day and Jason spent $40 per day, Mary will have $400 left when Jason has pent all his money. If Mary spent $40 per day and Jason spent $80 per day, Mary will have $1000 left when Jason jas spent all his money. What is the amount of money Jason has?

[jieheng]

wahwah:

Hi,

Need help with the following Math problems. Many thanks in advance.

1. Alvin's monthy income is $250 more than Clare but their monthly expenditures are the same. Over a certain period of time, Alvin has saved $1350 and Clare has only $600. Given that each of them spent $500 a month,
(a)How long did Clare take to save $600?
(b)What is Alvin's monthly income?

A [ ][500][250]

C [ ][500]

[ ] denotes savings

[ ] denotes expenditures

Alvin saves $250 more than Clare per month

The amount of money that Alvin saved more than Clare = 1350 - 600 =750

a) Number of months that Clare took to save $600 = 750 / 250 = 3 months (Ans)

b) The amount of money that Clare saved per month = 600 / 3 = 200

Alvin's monthly income = 200 + 500 + 250 = $950 (Ans)

[jieheng]

wahwah:

Hi,


2. Mary and Jason each have some money. If Mary spent $80 per day and Jason spent $40 per day, Mary will have $400 left when Jason has pent all his money. If Mary spent $40 per day and Jason spent $80 per day, Mary will have $1000 left when Jason jas spent all his money. What is the amount of money Jason has?

Model 1

M [ ] + 1000

J [ ][ ]

Model 2

M [ ][ ][ ][ ] + 400

J [ ][ ]

Compare models 1 and 2 of Mary ,
[ ][ ][ ]-----> 600
[ ]--------------> 200

The amount of money that Jason has = 2 * 200 = $400 (Ans)