Q&A - P5 Math
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Grandma had some yellow and purple sweets in the ratio of 9:7. On Monday, she made 54 more yellow sweets. On Tuesday she gave away 44 purple sweets and sold 129 yellow sweets. The number of yellow sweets to the number of purple sweets became in the ratio of 6:5. How many yellow sweets are there in the end?
Pl help… -
tianzhu:
Thx TianzhuJamesbond:
Using 3/5 of her money, Chloe could buy 11 notebooks. If she was given an extra $2, she could use it together with the remaining amount of money to buy another 8 such notebooks. How much money did Chloe have?
Hi
3 units ------ 11NB
2 units + 2 ------ 8NB
Make the number of NB equal
24 units ------- 88NB
22 units + 22 ------- 88NB
24 units ------- 22 units + 22
1 unit ------- 11
Chloe --------- 5*11 ------ 55
Best wishes -
Jamesbond:
HiGrandma had some yellow and purple sweets in the ratio of 9:7. On Monday, she made 54 more yellow sweets. On Tuesday she gave away 44 purple sweets and sold 129 yellow sweets. The number of yellow sweets to the number of purple sweets became in the ratio of 6:5. How many yellow sweets are there in the end?
Pl help...
This question has been discussed before in this thread.
Hope this helps
Best wishes![](\"http://farm8.staticflickr.com/7210/6837707220_51b42ebf08_z.jpg\")
http://farm8.staticflickr.com/7210/6837707220_51b42ebf08_z.jpg\">
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tianzhu:
:? :nailbite: am still not able to follow....
HiJamesbond:
Grandma had some yellow and purple sweets in the ratio of 9:7. On Monday, she made 54 more yellow sweets. On Tuesday she gave away 44 purple sweets and sold 129 yellow sweets. The number of yellow sweets to the number of purple sweets became in the ratio of 6:5. How many yellow sweets are there in the end?
Pl help...
This question has been discussed before in this thread.
Hope this helps
Best wishes -
Wilson spent equal amounts of money on 5 exercise books and 7 pencils. Each exercise book cost 30cents more than each pencil. How much did Wilson spend altogether?
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Jamesbond:
Hi
:? :nailbite: am still not able to follow....
This is a typical question on “Units and Parts”.
The tricky part in this question is changes are made in two stages unlike the common questions where you have single stage change.
For the yellow sweets, grandma made 54 sweets on Monday and sold 129 sweets on Tuesday, this gives a deficit of 75 (129-54)
9 units – 75 -------- 6 parts
7 units – 44 -------- 5 parts
Equalise the parts
45 units – 375 ------- 30 parts
42 units - 264 -------- 30 parts
45 units – 375 -------- 42 units - 264
From here 1 unit ------- 37
Best wishes -
carol73:
Wilson spent equal amounts of money on 5 exercise books and 7 pencils. Each exercise book cost 30cents more than each pencil. How much did Wilson spend altogether?
Hi
It helps to draw some simple diagram.
Cost of 7 pencils ------- Cost of 5 exercise books
Let cost of 1 pencil ------ 1 unit
Hence, cost of 1 exercise book ------- 1 unit + 30
7 units ------- (1 unit + 30)*5
7 units ------- 5 units +150
2 units ------ 150
1unit ------- 75
7 units ------- 525
Amount spend altogether -------- 525*2 ------- 1050 ------- $10.50
Best wishes -
tianzhu:
carol73:
Wilson spent equal amounts of money on 5 exercise books and 7 pencils. Each exercise book cost 30cents more than each pencil. How much did Wilson spend altogether?
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Hakim and suresh had some money in the ratio 13:8. When they each received $133, hakim will have 4 times as much money as Suresh. How much did hakim had at first?
Pl help… -
tianzhu:
Gotcha :salute: :thankyou:
HiJamesbond:
:? :nailbite: am still not able to follow....
This is a typical question on “Units and Parts”.
The tricky part in this question is changes are made in two stages unlike the common questions where you have single stage change.
For the yellow sweets, grandma made 54 sweets on Monday and sold 129 sweets on Tuesday, this gives a deficit of 75 (129-54)
9 units – 75 -------- 6 parts
7 units – 44 -------- 5 parts
Equalise the parts
45 units – 375 ------- 30 parts
42 units - 264 -------- 30 parts
45 units – 375 -------- 42 units - 264
From here 1 unit ------- 37
Best wishes
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