speedmaths.com:

UmaUmapathy:

Please help. Thanks in advance!


A lorry left city A at 11.36am and reached city B at 6.36pm. A motorcycle left city A 45 minutes later than the lorry and reached city B 3 hours earlier than the lorry. At what time did the motorcycle catch up with the lorry?

Hi,

You may try the PIYO-PIYO Method.

\"Put-In-Your'Own\" Speeds.

Thank you. Got the answer.

Please help. Thanks in advance!


A lorry left city A at 11.36am and reached city B at 6.36pm. A motorcycle left city A 45 minutes later than the lorry and reached city B 3 hours earlier than the lorry. At what time did the motorcycle catch up with the lorry?

guest2013:

UmaUmapathy:

2)During Chinese New Year, Tracy received some $2 notes and Alicia received some $5 notes. Tracy had 115% more notes than Alicia. After giving Alicia $60, Tracy had 10% more notes than Alicia.
1. How much did Tracy have at first?
2. How much did Alicia have in the end?

Suggested answer:

At first,
T has 115 units of $2 notes;
A has 100 units of $5 notes.

Then, T give $60 (30 pcs of $2 notes) to A

At the end,
T has 115 units - 30 pcs;
A has 100 units + 30 pcs
10% more than A will therefore be
= 10% x (100units + 30 pcs)
= 10 units + 3 pcs

15 units = 10 units + 3 pcs + 30 pcs + 30 pcs
5 units = 63 pcs
100 units= 1260 pcs
115 units= 1449 pcs

a) At first, T has 115 units of $2 notes
1449 x $2 = $2898

b) At the end, A has 100 units of $5 notes + 30 pcs of $2 notes
1260 x $5 + $60 = $6360

Thanks for your effort.
But,I don't understand why Tracy has 115% instead of 215% at first

guest2013:

UmaUmapathy:

Please help! Thanks in advance.


1)22% of shirts in a store are blue. The number of red shirts to white shirts is in the ratio 4:9. When more shirts are delivered, the number of shirts increased by 60%. The ratio of the number of red shirts to the number of white shirts to the number of blue shirts remained same. There are 792 blue shirts in the store now.
1. How many red shirts were there at first?
2. What is the increase in the number of white shirts?

Suggested answer:

Blue = 22% or 22units
Red + White
= 100 units - 22 units
= 78 units
Red
= 78 units x 4/13
= 24 units
White
= 78 units x 9/13
= 54 units

Since ratio remained unchanged, at first, number of blue shirts
= 792 / 160% x 100%
= 495 (22 units)

a) At first, number of red shirts
= 495 / 22 units x 24 units
= 540

b) At first, number of white shirts
= 495 / 22 units x 54 units
= 1,215

Increase in white shirts
= 1,215 x 60%
= 729

Thank you guest2013

Please help! Thanks in advance.


1)22% of shirts in a store are blue. The number of red shirts to white shirts is in the ratio 4:9. When more shirts are delivered, the number of shirts increased by 60%. The ratio of the number of red shirts to the number of white shirts to the number of blue shirts remained same. There are 792 blue shirts in the store now.
1. How many red shirts were there at first?
2. What is the increase in the number of white shirts?



2)During Chinese New Year, Tracy received some $2 notes and Alicia received some $5 notes. Tracy had 115% more notes than Alicia. After giving Alicia $60, Tracy had 10% more notes than Alicia.
1. How much did Tracy have at first?
2. How much did Alicia have in the end?

suku:

UmaUmapathy:

Please help!

Mrs Raju bought some apples and pears. She placed them into two baskets x and y. The total number of fruits in basket x was 1/2 as many as that in basket y. The number of apples in basket x was 5/8 as many as that in basket y. The number of pears in basket x was 1/3 as many as that in basket y.
What fraction of the fruits which Mrs Raju bought were apples?

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Thank you suku

Please help!

Mrs Raju bought some apples and pears. She placed them into two baskets x and y. The total number of fruits in basket x was 1/2 as many as that in basket y. The number of apples in basket x was 5/8 as many as that in basket y. The number of pears in basket x was 1/3 as many as that in basket y.
What fraction of the fruits which Mrs Raju bought were apples?

suku:

UmaUmapathy:

Please help! Thanks in advance.


1760 children took part in a run last year. This year, the number of boys increased by 20% while the number of girls decreased by 20%. As a result, the number of girls became twice as many as the number of boys this year.
a. How many boys took part in the run last year?

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Thank you suku

Please help! Thanks in advance.


1760 children took part in a run last year. This year, the number of boys increased by 20% while the number of girls decreased by 20%. As a result, the number of girls became twice as many as the number of boys this year.
a. How many boys took part in the run last year?

Please help with the solution. Thanks in advance.


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