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Find (7x + 4y ) / (x-2y) if x/2y = 3/2 ?
(a) 6 (b) 8 (c) 7 (d) data insufficient
Read Solution (Total 6)
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- Correct Answer is not there in the given options.
if x/2y = 3/2 then 2x = 6y i.e. x=3y
(7x + 4y ) / (x-2y) = (7(3y) + 4y ) / (3y-2y)
=25y/y = 25 - 12 years agoHelpfull: Yes(6) No(0)
- 25 is the answer
x=3y
substituting in equation we get 25 - 12 years agoHelpfull: Yes(1) No(0)
- x/y=3;
x=3y;
7x+4y=25y;
x-2y=y;
(7x+4y)/(x-2y)=25 - 11 years agoHelpfull: Yes(1) No(0)
- 25
as given x/2y=3/2
=>x=3y
substituting this in the given exp. we will get the answer. - 11 years agoHelpfull: Yes(0) No(0)
- answer :25
- 10 years agoHelpfull: Yes(0) No(0)
- ans:(d)
x/2y=3/2 then x=3,y=1 substitute these values in given equation we get
25/1=25. - 10 years agoHelpfull: Yes(0) No(0)
Bank Exam Other Question
For Question 6-9 : As part of their sports physicals, seven collegiate athletes – F, G, H, I, J, K & L – are being weighed. In announcing the results of the physical exams, the coach has given the following information:
None of the athletes is exactly the same weight as another athlete
K is heavier than L, but lighter than H
I is heavier than J
Both F and G are heavier than H.
6. Each of the following could be true EXCEPT
a. F is the heaviest
b. G is the heaviest
c. I is the heaviest
d. More than three athletes are heavier than K
e. More than three athletes are lighter than K
7. Which of the following, if true, would be sufficient to determine which athlete is the lightest?
a. I is the heaviest
b. I is lighter than K
c. K is heavier than J
d. J is heavier than K
e. Exactly five students are lighter than F
8. If J is heavier than F, how many different rankings, by weight, of the athletes are possible?
a. 1
b. 2
c. 4
d. 6
e. 8
9. If H is heavier than I, which of the following CANNOT be true?
a. I’s weight is equal to the average of F’s weight and G’s weight
b. I’s weight is equal to the average of K’s weight and L’s weight
c. J’s weight is equal to the average of K’s weight and L’s weight
d. J is the second lightest
e. J is the lightest
If 2x-y=4 then 6x-3y=? (a)15 (b)12 (c)18 (d)10