Product of Pragati age 2 years ago and 3 years hence is 84.
find her present age?
smartyaditya78:
Bhai bolo to mai explain kr doon
kar fo yaar
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Answered by
1
23 may be this answer is correct please tell me if it's wrong
No it's not 25... It's 9 but I want with its explanation.
Let pragati's age be 'x' yeras
Let pragati's age be x years
here explanation is not needed as is does nor has any other sign other than +
sorry i posted it at a wrong place
may i explain
tell me
Answered by
3
HI THERE
Let Pragati's age be=x years
two years before =x-2 years
three years before =x-3 years
Product of their ages are 84
equation is :
(x-2)(x-3)=84
x^2-3x-2x+6=84
x^2-x-78=0
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