please ......answer iv bit
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Hi ,
At present
_________
Rohan's age = x years
Mother's age = ( x + 26 ) years
After 3 years
__________
Rohan's age = ( x + 3 ) years
Mother's age = ( x + 26 + 3 )
= ( x + 29 ) years
According to the problem given,
( x + 3 ) ( x + 29 ) = 360
x² + 32x + 87 = 360
x² + 32x + 87 - 360 = 0
x² + 32x - 273 = 0
x² + 39x - 7x - 7 × 39 = 0
x ( x + 39 ) - 7 ( x + 39 ) = 0
( x + 39 ) ( x - 7 ) = 0
x + 39 = 0 or x - 7 = 0
x = - 39 or x = 7
Age should not be negative ,
Therefore ,
x = 7
At present
________
Rohan's age = x = 7 years
Mother's age = x + 26
= 7 + 26
= 33 years
I hope this helps you.
:)
At present
_________
Rohan's age = x years
Mother's age = ( x + 26 ) years
After 3 years
__________
Rohan's age = ( x + 3 ) years
Mother's age = ( x + 26 + 3 )
= ( x + 29 ) years
According to the problem given,
( x + 3 ) ( x + 29 ) = 360
x² + 32x + 87 = 360
x² + 32x + 87 - 360 = 0
x² + 32x - 273 = 0
x² + 39x - 7x - 7 × 39 = 0
x ( x + 39 ) - 7 ( x + 39 ) = 0
( x + 39 ) ( x - 7 ) = 0
x + 39 = 0 or x - 7 = 0
x = - 39 or x = 7
Age should not be negative ,
Therefore ,
x = 7
At present
________
Rohan's age = x = 7 years
Mother's age = x + 26
= 7 + 26
= 33 years
I hope this helps you.
:)
ICP:
iv bit
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