Answer to question no 10 is 405. If we take 81 that not match with question .81+162=243. here 243<567.but in question said milk=water.here that condition only fulfill by 405.405+162=567.and after adding 405 with 729 we get 1134.and 1134/2=567.so milk=water.so we must take this answer.wrong answer must be changed it will helpful for reader.
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The moon has no gravity ??? What planet are you from ?
Neither aircraft would be able to fly for multiple reasons, none of which has anything to do with gravity, which the moon does have, it is simply less than that of the earth because of the lower mass of the moon.
The aircraft would not be able to fly because there is no atmosphere on the moon. This would then not allow the internal combustion engines to operate since no oxygen = no combustion. Second, even if the motors could be made to run (bottled air) with no atmosphere, there is nothing for the rotor blades or propellers to create lift from so no lifting or forward movement could occur.
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You have not given the questions related to work and man and woman. Such type of questions are very important in any aptitude test. Otherwise your effort is really appreciate-able. Your sample test on Quantitative Aptitude includes lots of things in only 10 questions. But it can be improved if my suggestions are included.
Comment that not enough information for Math #6 to be solved is in error.
Start at the end, last 15 minutes (at 45 minutes) require 20,000 lbs for payload but additional will be needed to carry weight of fuel. So 2 fuel rockets total needed at 45 minutes. 20,000 plus 20,000 fuel require 40,000 plus fuel needed to carry that load at 30 minutes to 45 minutes. Hence, 2 rockets plus 1 additional to carry the 2 fuel rockets plus 1 additional to carry the additional fuel rocket. So 4 fuel rockets needed from 30 minutes to 45 minutes. Same logic applies from 15 minutes to 30 minutes (yielding 8 rockets) and from 0 minutes to 15 minutes (yielding 16 rockets).
Add 16 + 8 + 4 + 2 = the grand total of 30 rockets.
I think correct answer is 405. Following is the explanation for it. We know that 567 ml is milk and 162 is water..now out target is to reach 567 ml of water to fulfill the condition..so we must add 405 ml of water to the given mixture... therefore the correct answer is 405.
Unless I missed something, which is possible, question 6 in the first section does not give you the information necessary to make the assumptions shown in the answer. No where does it tell you that there are 16 rocket engines in the first stage.