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Posted on Jan 02, 2017

SOURCE: The average age of 3

The average is 20, it means the total is 60. The sum of ratio is 15 (3+5+7)

Therefore the age of a girl is calculated by multiplying the respective ration with total and dividing by sum of ratio

Age of Eldest girl = 7 x 60 /15 = 28

Hope it helps! Good Luck!

CreativeTECH

Posted on Feb 15, 2011

About 70, though it can vary from breed to breed.

Jan 07, 2017 | Dogs

Let Adjoa's age be x and Kwame's y.

- Adjoa is 3 years older than Kwame: x=y+3
- Seven years ago sum of their ages was 13: (x-7)+(y-7)=13
- Now you substitute first equation into second equation: (y+3-7)+(y-7)=13
- 2y-4-7=13
- 2y=24
- y=24/2=12 years
- x=y+3=12+3=15 years
- sum of their present ages is x+y=12+15=27 years

Sep 27, 2011 | Office Equipment & Supplies

Todd is 4 years old.

Let Tom's age = X

Let Todd's age = Y

From the given facts:

X = 5Y

and

X + 7 + 6 = 3 ( Y + 7 )

X+13 = 3Y + 21

X = 3Y + 8

So if:

X=5Y

and

X=3Y+8

Then:

5Y=3Y+8

2Y=8

Y=4

I hope that helps.

Joe.

Let Tom's age = X

Let Todd's age = Y

From the given facts:

X = 5Y

and

X + 7 + 6 = 3 ( Y + 7 )

X+13 = 3Y + 21

X = 3Y + 8

So if:

X=5Y

and

X=3Y+8

Then:

5Y=3Y+8

2Y=8

Y=4

I hope that helps.

Joe.

Sep 14, 2011 | Office Equipment & Supplies

The average is 20, it means the total is 60. The sum of ratio is 15 (3+5+7)

Therefore the age of a girl is calculated by multiplying the respective ration with total and dividing by sum of ratio

Age of Eldest girl = 7 x 60 /15 = 28

Hope it helps! Good Luck!

CreativeTECH

Therefore the age of a girl is calculated by multiplying the respective ration with total and dividing by sum of ratio

Age of Eldest girl = 7 x 60 /15 = 28

Hope it helps! Good Luck!

CreativeTECH

Feb 15, 2011 | Computers & Internet

RED = DER = 4/5/18 = 6/7/20 =6720.

GREEN = NEERG = 14/5/5/18/7 =16/7/7/20/9 = 1677209.

GREEN = NEERG = 14/5/5/18/7 =16/7/7/20/9 = 1677209.

Dec 29, 2010 | Computers & Internet

Hahahaha, Aaala!
Kafi sochna para, is tarha ho ga mere khyaal se;

140 Saal teenoN ki mila k banti hay;

Pota:** 7Years**

Baap:**49Years**

Dada:**84Years**

**7+49+84 = 140 (Theek)**

Pota kitnay Month ka = 7 x 12 = 84 **=>** Dada ki umer in years** (Theek)**

Pota kitnay Din ka = 7 x 365 = 2555din **=>** Baap ki umer in weeks [ (49x365) / 7 ] = 2555 (**Ye be Theek**)

*Concerned, Nooh bin Sikander*

140 Saal teenoN ki mila k banti hay;

Pota:

Baap:

Dada:

Dec 18, 2010 | Computers & Internet

(D=Dad's age, and S=Son's age)

D=S+20 (Dad is 20 years older than Son)

D+10 = 2xS (In ten years Dad will be twice Son's current age)

therefore (by substitution):

S+20+10 = 2xS

S+30 = 2S

2S = S+30

2S-S = 30 (subtract S from both sides)

D = S+20

D = 30+20

In ten years, Dad will be 60, which is twice Son's current age of 30.

Please ask for -Gort.

Aug 27, 2010 | Mathsoft Solving and Optimization...

Three unknowns with three equasions:

cindy is 5 years older than alex. write it as c = a + 5

cindy is 7 years older than peter. write it as c = p + 7

The sum of their ages is 21. write it as c + a + p = 21

first solve for peters age in terms of alex's age.

c = p + 7 or

(a + 5) = p + 7 or

p = (a + 5) - 7 or

p = a - 2

substitute in and solve the equasion:

(a + 5) + a + (a - 2) = 21 or

3a + 3 = 21 or

3a = 24 or

a = 8

c = a + 5 or

c = 8 + 5 = 13

c = p + 7 or

p = c - 7 or

p = 13 - 7 = 6

cindy is 13, alex is 8 and peter is 6

This is called simultaneous equasions and will always work if you have the same number of unknowns as you have equasions (or relationships).

cindy is 5 years older than alex. write it as c = a + 5

cindy is 7 years older than peter. write it as c = p + 7

The sum of their ages is 21. write it as c + a + p = 21

first solve for peters age in terms of alex's age.

c = p + 7 or

(a + 5) = p + 7 or

p = (a + 5) - 7 or

p = a - 2

substitute in and solve the equasion:

(a + 5) + a + (a - 2) = 21 or

3a + 3 = 21 or

3a = 24 or

a = 8

c = a + 5 or

c = 8 + 5 = 13

c = p + 7 or

p = c - 7 or

p = 13 - 7 = 6

cindy is 13, alex is 8 and peter is 6

This is called simultaneous equasions and will always work if you have the same number of unknowns as you have equasions (or relationships).

Sep 20, 2009 | Puzzle Toys

Here are some Gear Ratios for the current Yamahas...I ll try to add to this list for other years. FYI...the Primary Ratio is the crank to clutch and the secondary ratio is the sprockets.
2004-7 R1 Ratios
Primary 1.512
Secondary 2.647
1st 2.533
2nd 2.063
3rd 1.762
4th 1.522
5th 1.364
6th 1.269
2006-7 R6
Primary 2.0731
Secondary 2.8125
1st 2.583
2nd 2
3rd 1.667
4th 1.444
5th 1.286
6th 1.15

Nov 10, 2008 | 1994 Yamaha FZX 750

Paul 3 years younger to his friend peter. In seven years, the product of their ages would be 5 more than the product of their ages 5 years ago. How old are they now?

Oct 31, 2008 | Texas Instruments TI-30XA Calculator

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