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Numerical Ability
Age Problem
In the annual Cultural Programme of indra prastha there was this Math Quiz going on.
yudhisthir faced this last question that will bring the champion's trophy. What will be the
solution for the given problem?
The function f is defined is defined as
f(2x+3)= (x-3)(x+4)
What is f(29)?
Read Solution (Total 15)
-
- f(2x+3)= (x-3)(x+4)
put x=13
f(2*13+3)=(13-3)*(13+4)=10*17
f(29)=170
- 11 years agoHelpfull: Yes(44) No(1)
- 170
reas::f(29)=f(2*13+3)=(13-3)(13+4)=10*17=170 - 11 years agoHelpfull: Yes(3) No(0)
- 2X+3=29 ==>X=13
f(29)=10*17
= 170
ans = 170 - 10 years agoHelpfull: Yes(2) No(0)
- f(2*13+3)=(13-3)(13+4)
f(29)=170 - 11 years agoHelpfull: Yes(1) No(0)
- we need to find f(29)
so let x = 13 for given condition,
then..
f(2*13+3) =(13-3)(13+4)
f(29) = 170. - 11 years agoHelpfull: Yes(1) No(1)
- since f(2x+3)=(x-3)(x+4)
so, f(29)=f(2*13+3)=(13-3)(13+4)
=10*17=170
answer=170 - 11 years agoHelpfull: Yes(0) No(0)
- F(29)=F(2(13)+3)=(13-3)(13+4)=170
- 11 years agoHelpfull: Yes(0) No(0)
- 29-3=26
2x=26
therefore x=13
10*17=170 - 11 years agoHelpfull: Yes(0) No(0)
- answer is 170
- 11 years agoHelpfull: Yes(0) No(0)
- By the calculation X value will be 13. So the Ans. is 170.
- 11 years agoHelpfull: Yes(0) No(0)
- here given that 2x+3=29 then x=13 then f[29]=170
- 11 years agoHelpfull: Yes(0) No(0)
- 170
put x=13. - 11 years agoHelpfull: Yes(0) No(0)
- 2x+3=29
2x=29-3=26
x=26/2=13
then substitute x value in (x-3)(x+4)
then you get answer as 170
- 10 years agoHelpfull: Yes(0) No(0)
- 2x+3=29
2x=29-3=26
x=26/2=13
then substitute x value in (x-3)(x+4)
then you get answer as 170 - 10 years agoHelpfull: Yes(0) No(0)
- x=13
10*17
170
- 9 years agoHelpfull: Yes(0) No(0)
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