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06 Dec 2018, 01:58
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
70% (02:05) correct
30%
(01:50)
wrong
based on 392
sessions
History
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Not Attempted Yet
Charles has 3 different types of bonds: A, B and C. Value of a single bond of type A, a single bond of type B, and a single bond of type C is $2000, $4000 and $6000 respectively. How many total bonds of type B does Charles have ?
(1) On combining bonds of type A and type C, average value per bond is $4000.
(2) On combining bonds of type B and type C, average value per bond is $5200.
Posted from my mobile device
(1) On combining bonds of type A and type C, average value per bond is $4000.
(2) On combining bonds of type B and type C, average value per bond is $5200.
Posted from my mobile device
06 Dec 2018, 02:46
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The answer is E.
We can solve this Logically:
Both the statements give only relative information on the number of bonds: the average can only help us find out how many B B bonds there are relative to A or C bonds. But nowhere do we have any info on the absolute number of bonds - which is what we're asked about! insufficient.
We can solve this Logically:
Both the statements give only relative information on the number of bonds: the average can only help us find out how many B B bonds there are relative to A or C bonds. But nowhere do we have any info on the absolute number of bonds - which is what we're asked about! insufficient.
General Discussion
10 Mar 2023, 22:41
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from Option (1) we get
2x + 6z = 4x + 4z
x = z
From Option (2) we get
4y + 6z = 5.2 z + 5.2 y
y = z
from (1) & (2) we get
x = y = z
but we dont have any information on absolute number of bonds
Hence it is difficult to find the value of x (or) y (or) z
2x + 6z = 4x + 4z
x = z
From Option (2) we get
4y + 6z = 5.2 z + 5.2 y
y = z
from (1) & (2) we get
x = y = z
but we dont have any information on absolute number of bonds
Hence it is difficult to find the value of x (or) y (or) z
