A तथा B की आयु का अंतर 16 वर्ष है। 6 वर्ष पहले A की उम्र B की उम्र की तिगुनी थी। प्रत्येक की वर्तमान उम्र ज्ञात कीजिए
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Answered by
8
HEYA..
HERE IS YOUR ANSWER..
LET ..
THE PRESENT AGE OF A BE 'X'
AND PRESENT AGE OF B IS 'Y''
THEN A/Q..
X-Y= 16.........................[1]
AND
6 YR AGO
MEANS X - 6 = AGE OF X
Y - 6= AGE OF Y
2ND CONDITION-
X - 6 = 3 [Y-6]
= X-6 = 3Y-18
=X-3Y= -18+6
=X-3Y= -12.............[2]
THEREFORE BY ELIMINATION METHOD...
X - Y = 16
X -3Y = -12
- + +
________________-
2Y = 28
Y = 28/2
Y = 14..
PUT VALUE IN [1]
X-Y=16
X-14=16
THEREFORE X= 16-14
X= 2
SO AGE OF A= 14 YEARS..
AGE OF B = 2 YEARS
HOPE HELPED..
HERE IS YOUR ANSWER..
LET ..
THE PRESENT AGE OF A BE 'X'
AND PRESENT AGE OF B IS 'Y''
THEN A/Q..
X-Y= 16.........................[1]
AND
6 YR AGO
MEANS X - 6 = AGE OF X
Y - 6= AGE OF Y
2ND CONDITION-
X - 6 = 3 [Y-6]
= X-6 = 3Y-18
=X-3Y= -18+6
=X-3Y= -12.............[2]
THEREFORE BY ELIMINATION METHOD...
X - Y = 16
X -3Y = -12
- + +
________________-
2Y = 28
Y = 28/2
Y = 14..
PUT VALUE IN [1]
X-Y=16
X-14=16
THEREFORE X= 16-14
X= 2
SO AGE OF A= 14 YEARS..
AGE OF B = 2 YEARS
HOPE HELPED..
Answered by
4
Heya,
__________________________
__________________________
ФФ→→ A तथा B में अंतर = 16.
so, A-B = 16 ___________1.
A - 6 = 3B ___________________2.
USING Elimination method .
A -3B = 6
A - B = 16
- + - (changing signs)
__________________
Then,
A -A -3B +B = 6-16
-2B = -10 .
B = 5 years .
then ,
A -B = 16
A = 16 + 5
A = 21 .
HENCE , A = 21 years .
B = 5 Years .
_____________________________
_____________________________
ANKIT
__________________________
__________________________
ФФ→→ A तथा B में अंतर = 16.
so, A-B = 16 ___________1.
A - 6 = 3B ___________________2.
USING Elimination method .
A -3B = 6
A - B = 16
- + - (changing signs)
__________________
Then,
A -A -3B +B = 6-16
-2B = -10 .
B = 5 years .
then ,
A -B = 16
A = 16 + 5
A = 21 .
HENCE , A = 21 years .
B = 5 Years .
_____________________________
_____________________________
ANKIT
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