Tutor MathsGuru: Ask me for your burning Maths questions!
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2 simple questions that need to find better way to explain to my son. d
1. James had twice as many marbles as Bob. After James lost 240 marbles, Bob had 3 times as many marbles as James. How many more marbles did James have Than Bob at first.
2.Peter is 8 years old and his mother is 30 years older than he. how old will Peter be when his mother is thrice his age?
TQ -
Is it possible to solve the question below by models? Thanks, Mathsguru for setting up this thread!
In the begining, the ratio of Alan’s marbles to Kevin’s marbles was 3:4. After Alan bought another 9 marbles and Kevin lost 18 marbles, the ratio becomes 3:2. find the number of marbles Alan had at first. -
chrisho:
2 simple questions that need to find better way to explain to my son. d
1. James had twice as many marbles as Bob. After James lost 240 marbles, Bob had 3 times as many marbles as James. How many more marbles did James have Than Bob at first.
TQ
http://www.postimage.org/image.php?v=TsuDSr0 -
chrisho:
Now2 simple questions that need to find better way to explain to my son. d
2.Peter is 8 years old and his mother is 30 years older than he. how old will Peter be when his mother is thrice his age?
TQ
Peter : 8 yrs old
Mother : 8 + 30 = 38 yrs old
Difference in age = 38 – 8 = 30 years
THE DIFFERENCE IN AGE BETWEEN PETER AND HIS MOTHER IS ALWAYS 30 YEARS
When mother is thrice Peter’s age
Peter : 1u
Mother : 3u
Difference = 2u = 30 years
1u = 15 years
Peter will be 15 when his mum is thrice his age -
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! -
abc_parent:
Tom : $104 - 1u = 2pGuru, 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!
Jerry : $94 - 4u = 1p
$104 - 1u = $188 - 8u
7u = $84
1u = $12
Amt of money Tom left with = $104 - $12 = $92 -
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