Question

5 year hence Priya will be twice as old as jenny.10 years ago Priya was thrice as old as jenny. Find Thier present age?? Std 10. Plz plz plz answer.

Answer 1

Let P=Priya.Present and F=Father.Present and O be the Offset in Years as 16.

3P=F is the Present Tense.

3P+16=F+16=2(P+16) is The Future Tense.

We observe that Like Terms Exist in the Comparison of Priya.Present to Pria.Future, bywhich we may contrast to derive Priya.Present.

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3P+16=2P+32

P=16 By Differential, subtracting 2P+16 from both.

If we did not use Differential we might yeild a less sane result like

[(3P-16)/2P]=1

Thus her Father as Thrice the Present Age of She, at Present is 48, and in 16 years, He is 64 whilst She is 32, and the ratio of Age of F+O:P+O, whereby O is Offset of course will reduce evermore to an insignificancy of:

F/O is For all Practical Purposes and Intents, Very insignificantly different from P/O.
(F+O)÷(P+O) multiplied by Yeast in Bread does not really increase the Size of the Bread
(F+O)÷(P+O) Being Multiplied by Your Soup in France is of a lesser Molecular Difference than the Garcon Breathing on a Slightly Dirty Spoon to Rub it on a Napkin, for the Folks who arrive Regularly, Complaining about the Service, whom always seat Table 22 and want a Free Meal, and consider leaving No Tip atall for the Garcon, as: A means to receive One Free Lunch per each 7 Reservations these do not leave on the table a 15% Gratuity for the Waiter, whom likely Only Breathes on the Spoon because the Husband is Too Lazy to lift a Finger and pick up a Cloth Napkin and wipe off a water stain for his Always Unhappy Dissatisfied Wife.
If you multiplied (F+O)÷(P+O) by a Standard Bar of Hotel Soap, to aside that Excess, it would Take over and beyond 33 Million of these Operations to result the same effect as asiding 1 Leftover From a Selfsame Sized Bar of Hotel Soap, used for 3 days, at the Hotel Same, For Shaving Only.
But will not ever be (F+O)÷(P+O)=One

Answer 2

$\Large{\underline{\underline{\bf{GIVEN:-}}}}$

• 5 year hence Priya will be twice as old as jenny.
• 10 years ago Priya was thrice as old as jenny.

$\Large{\underline{\underline{\bf{TO \: FIND:-}}}}$

• What are their present ages ?

$\Large{\underline{\underline{\bf{SOLUTION:-}}}}$

Let the present age of Priya be 'x' years and that of Jenny be 'y' years

CASE:- 1)

❒ 5 year hence Priya will be twice as old as jenny.

• Priya's age = (x+5) years
• Jenny's age = (y+5) years

According to question:-

$\sf{\longmapsto (x+5) = 2(y+5) }$

$\sf{\longmapsto x +5 = 2y +10 }$

$\sf{\longmapsto x-2y = 10-5}$

$\bf{\longmapsto x-2y = 5...1)}$

$\sf{\longmapsto x = 2y +5}$

CASE:- 2)

❒ 10 years ago Priya was thrice as old as jenny.

• Priya's age = (x–10) years
• Jenny's age = (y–10) years

According to question:-

$\sf{\longmapsto (x-10) = 3(y-10) }$

$\sf{\longmapsto x-10 = 3y-30 }$

$\sf{\longmapsto x-3y = -30+10 }$

$\bf{\longmapsto x-3y = -20....2)}$

Put the value of 'x' in equation 2)

$\sf{\longmapsto (2y+5) -3y = -20 }$

$\sf{\longmapsto 2y+5-3y = -20 }$

$\sf{\longmapsto -y = -20-5 }$

$\sf{\longmapsto -y = -25}$

$\bf{\longmapsto y = 25 }$

Put the value of 'y' in equation 1)

$\sf{\longmapsto x - 2 \times 25 = 5 }$

$\sf{\longmapsto x -50 = 5 }$

$\sf{\longmapsto x = 5+50 }$

$\bf{\longmapsto x = 55}$

• Priya's age = x = 55 years
• Jenny's age = y = 25 years

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