Tutor MathsGuru: Ask me for your burning Maths questions!

[kitty2]

Please Help :?: Thanks.Please kindly give afew methods to solve them if you've any.


1) Ric earned $3 for each box of sweets sold.He also received a commission of $8 for every 15 boxes of sweets sold.How much money did he earn if he had sold 220 boxes of sweets?

2)For every watch that may repairs,she's paid $20,A bonus of $60 is given to her for every 50 watches she repaired.How many watches must she repair to earn $5560

[MathIzzzFun]

kitty2:

Please Help :?: Thanks.Please kindly give afew methods to solve them if you've any.


1) Ric earned $3 for each box of sweets sold.He also received a commission of $8 for every 15 boxes of sweets sold.How much money did he earn if he had sold 220 boxes of sweets?

2)For every watch that may repairs,she's paid $20,A bonus of $60 is given to her for every 50 watches she repaired.How many watches must she repair to earn $5560

Hi

both questions are similar..

1) Amount earned for every 15 boxes = $ 3 x 15 + $ 8=$53
220/15= 14 R10
Amount earned = 14 x $ 53 + 10 x $ 3=$772

2) For every 50 watches repaired, amount earned = $20 x 50 + $60=$1060
5560/1060= 5R260
Number of watches she must repair to earn $5560= 5 x 50 + $260/$20 = 263

cheers.

[kitty2]

MathIzzzFun:

kitty2:

Please Help :?: Thanks.Please kindly give afew methods to solve them if you've any.


1) Ric earned $3 for each box of sweets sold.He also received a commission of $8 for every 15 boxes of sweets sold.How much money did he earn if he had sold 220 boxes of sweets?

2)For every watch that may repairs,she's paid $20,A bonus of $60 is given to her for every 50 watches she repaired.How many watches must she repair to earn $5560

Hi

both questions are similar..

1) Amount earned for every 15 boxes = $ 3 x 15 + $ 8=$53
220/15= 14 R10
Amount earned = 14 x $ 53 + 10 x $ 3=$772

2) For every 50 watches repaired, amount earned = $20 x 50 + $60=$1060
5560/1060= 5R260
Number of watches she must repair to earn $5560= 5 x 50 + $260/$20 = 263

cheers.

:thankyou:

[MathIzzzFun]

kitty2:

MathIzzzFun:

[quote=\"kitty2\"]Please Help :?: Thanks.Please kindly give afew methods to solve them if you've any.


1) Ric earned $3 for each box of sweets sold.He also received a commission of $8 for every 15 boxes of sweets sold.How much money did he earn if he had sold 220 boxes of sweets?

2)For every watch that may repairs,she's paid $20,A bonus of $60 is given to her for every 50 watches she repaired.How many watches must she repair to earn $5560

Hi

both questions are similar..

1) Amount earned for every 15 boxes = $ 3 x 15 + $ 8=$53
220/15= 14 R10
Amount earned = 14 x $ 53 + 10 x $ 3=$772

2) For every 50 watches repaired, amount earned = $20 x 50 + $60=$1060
5560/1060= 5R260
Number of watches she must repair to earn $5560= 5 x 50 + $260/$20 = 263

cheers.

:thankyou:[/quote]u r welcome

cheers.

[kwcllf]

Hi, please help


Jolene and Penny had a sum of money. Jolene gave Penny 0.4 of her money. Penny then gave Jolene 1/2 of her money. In the end, Jolene had 3 times the amount of money that Penny had. If Jolene gave Penny $125 more that what Penny gave Jolene, how much money did Jolene have at first?

Thanks

[MathIzzzFun]

kwcllf:

Hi, please help


Jolene and Penny had a sum of money. Jolene gave Penny 0.4 of her money. Penny then gave Jolene 1/2 of her money. In the end, Jolene had 3 times the amount of money that Penny had. If Jolene gave Penny $125 more that what Penny gave Jolene, how much money did Jolene have at first?

Thanks

Hi

for this type of question, it is best to draw a diagram to see the transfers...I will use units here..

After Penny gave Jolene 1/2 her money,
Jolene = 9 units
Penny = 3 units

So, before Penny gave Jolene her money,
Jolene = 6 units
Penny = 3 units ... Penny gave 3 units

This is after Jolene gave 0.4 of her money ie 6 units = 0.6 of Jolene's money at first. At first, Jolene had 10 units ie Jolene gave 4 units to Penny

4 units - 3 units = 1unit = $ 125
Jolene had 10 units = $ 1250

cheers.

[kwcllf]

Hi MathIzzzFun,


Thanks Again

[MathIzzzFun]

kwcllf:

Hi MathIzzzFun,


Thanks Again

u r welcome

cheers.

[Herbie]

can help with the qn below??

a stairs with 10 steps. U can either take one step or 2 step at a time. How many ways can u go up the stairs?

Tq

[MathIzzzFun]

Herbie:

can help with the qn below??

a stairs with 10 steps. U can either take one step or 2 step at a time. How many ways can u go up the stairs?

Tq

Hi

math olympiad question?

I think you can find solutions to similar type question in the math olympiad thread. You can solve this using the Fibonacci numbers.

Nx = number of ways to go up x steps

Number of ways to go up a 10 steps, N10
= Number of ways to go up 9 steps and then do a 1-step
+ Number of way to go up 8 steps and then do a 2-step
=N9+N8

working backwards, we have N9=N8+N7, N8=N7+N6... N3=N2+N1
N1=1
N2=2
N3=1+2=3
N4=2+3=5
N5=3+5=8
N6=5+8=13
N7=8+13=21
N8=13+21=34
N9=21+34=55
N10=34+55= 89

there are 89 ways to walk up 10 steps using 1 step or 2 steps.

cheers.