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Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
A.
3
B.
10
C.
17
D.
20
Read Solution (Total 9)
-
- x+17=60/x
on solving this equation by shri dharacharya formula
then we have two roots 3 and -20
so the ans is 3 - 13 years agoHelpfull: Yes(7) No(2)
- X +17 = 60/X.( From the question)
Substitute all values form the given options.....in X
Now first Substitute X= 3,,,
3+17 = 60/ 3
20 = 20.......... which satisfies the condition.. - 6 years agoHelpfull: Yes(3) No(0)
- A. 3
lets suppose no. is x now
according to question =
x+17=60*(1/x)
now its form a qudratic eqn
x^2+17x-60=0
solution of this eqn is
x=3,-20
because in the question positive number is mention so the answer is (A). 3 - 8 years agoHelpfull: Yes(0) No(0)
- Let the no be X . Then X+17=60* 1/X(reciprocal).
Thus, We get ,
X=3 - 8 years agoHelpfull: Yes(0) No(0)
- let the answer be X
X+17=60*1/X
if u substitute the given options one by one
ans will be 3
3+17=60*1/3
20=20
so the answer is 3 - 7 years agoHelpfull: Yes(0) No(0)
- x+17=60/x
x^2+17x=60
=>x=3 or x=-20
hence ans is option a - 7 years agoHelpfull: Yes(0) No(0)
- X+17=60/x
x^2+17x-60=0
X^2+20x-3x-60=0
x(x+20)-3(x+20)=0
x=3 & x= -20
Hence A. 3 is answer. - 6 years agoHelpfull: Yes(0) No(0)
- x+17=60/x
x^2+17*x-60=0
x^2+20*x-3*x-60=0
x(x+20)-3(x+20)=0
x=3, x=-20
therefore option a is correct - 6 years agoHelpfull: Yes(0) No(0)
- Option A is correct
- 6 years agoHelpfull: Yes(0) No(0)
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