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Aptitute Test Interview Questions and Answers (58)  Page 3
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Find next number in the series 105, 85, 60, 30, 0, 45, 90,_?
Answer: 0
Explanation:
10520=85; 8525=60; 6030=30; 3035=5; 540=45; 4545=90;
Find next number in the series 6, 24, 60,120, 210
NOTE: This is objective type question, Please click question title for correct answer.
Find next number in the series 1, 5, 13, 25,_
NOTE: This is objective type question, Please click question title for correct answer.
Simplify: (893+786)^2 (893786)^2 / (893*786)= ?
ANSWER:
FORMULA SUBSTITUTION:
NUMERATOR: (A+B)^2 (AB)^2 = 4AB
DENOMINATOR:AB
=> 4AB/AB=4
THE ANSWER IS 4
(36785)^2350 +(96387)^350 What is the Unit Digit in the above mentioned expression ?
short cut:
1st portion:untit digit=>
5^2350 only considered power number:(23501)/4=remainder 1
5^1+remainder=5^1+1=5^2=25
so unit digit =>5
2nd portion :unit digit=>
7^350 only considered power number:(3501)/4=remainder 1
7^1+remainder=7^1+17^2=49
so unit digit=>9
Answer=1st portion unit digit+2nd portion Unit Digit
==> 5+9=14
Answer is 4
(Important:(Any Power number1)/4)
If a^2+b^2=117 and ab=54 then find the value of a+b/ab.
Answer:
(a+b)^2=a^2+b^2+2ab
= 117+2*54=225
=> a+b=15
(ab)^2=a^2+b^22ab
= 1172*54=9
=> ab=3
then a+b/ab
=15/3=5
A Worker agreeing to finish a work in 150 days, employed 75 men each working 8 hours daily. After 90 days, only 2/7 of the work was completed. Increasing the number of men by ________ each working now for 10 hours daily, the work can be completed in time.
Answer is
150 men.
Explanation :
1 day work = 2/(7*90)
1 hour work=2/(7*90*8)
1 man work=2/(7*90*8*75)
The Remaing work 5/7 has to be completed in 60 days , because the total number of days allowed for the completion of the work is 150 days.
so we have ,
(2 * 10 * x * 60) / (7 * 90 * 8 * 75) = 5/7
where x is the number of men working after the 90th day.
We get x = 225
Since we have 75 men already,
Answer = 225 75
It is enough to add only 150 men.
What is one thing that you as a developer will never compromise on?
NOTE: This is objective type question, Please click question title for correct answer.
There are 9 snooker balls in which one is slightly heavier in weight among all. In How many weighs you can find that ball using simple balance ?
NOTE: This is objective type question, Please click question title for correct answer.
Two people will take 2 hours to paint 2 rooms.How many people required to paint 18 rooms in 6 hours ?
6 people is the answer..See How.,
2 people can paint 2 rooms in 2 hours..Similarly,
6 people can paint 6 rooms in same 2 hours.
so the same 6 people can paint 18(6*3)rooms in 6(2*3)hours.
A shop sells chocolates at Rs 1 each. You will be able to exchange 3 wrappers for 1 chocolate. If you hav Rs 15, How many chocolates can you get totally ?
NOTE: This is objective type question, Please click question title for correct answer.
You have to measure exactly 4 liters of water, but you only have a 3liter bottle and a 5liter bottle. How do you do it?
Fill the 3liter bottle and pour it into the empty 5liter bottle.
Fill the 3liter bottle again, and pour enough to fill 5liter bottle. This leaves exactly 1 liter in the 3liter bottle.
Empty the 5liter bottle; pour the remaining 1 liter from the 3liter bottle into the 5liter bottle.
Fill the 3liter bottle and pour it into the 5liter bottle. The 5liter bottle now has exactly 4 liters.
In a Pond, there are 2 flowers. Flowers get double for every minute. It takes 25 minutes to fill the pond with Flowers. How much time did it takes to fill the half of the pond ?
Its 24 minutes. Because at 24th minute, pond contains Half of flowers and get doubles in the next minute to fill the pond.
There are 3 switches outside a Room in which one of them are functional to a light bulb which is inside that room.How can you find the right switch if you only allowed into the room once ?
Here is the simplification how it works,
First switch on the 1st switch and wait for 5 minutes. Then switch it off and turn on 2nd switch. Now get in the room Immediately and Observe the light bulb.
If it is 'on', then 2nd switch is right.
If it is 'Off', check the bulb if it is Hot or not. If it is 'Hot', then 1st switch is right(because you switched it on for 5 min and bulb gets heated that time) and if 'Cold', then 3rd switch is correct one.
There is a new building having 100 rooms in it. A painter was hired to paint the numbers 1 to 100 on the doors.How many times he have to paint the number '8'?
20 times, because 8 comes twenty times in upto 100 numbers. They are,
8,18,28,38,48,58,68,78,80,81,82,83,84,85,86,87,88,89,98.
There are some Apples to the Apple tree. After a strong wind on the tree, there were no Apples on the tree and on the ground. Why?
Simple, Tree's got 2 apples earlier. After the wind, 1 Apple fell down.
So there is only 1 apple each on the Tree and on the Ground. Not Apples
A 6Feet taller Man found dead by Hanging himself to the Fan in an Empty room. There are no things found in the room except the puddle of water. The Fan is 12feet from the bottom. How did he hung himself?
As we said that there is the puddle of water in the Room. That means, He stood on the big Ice Slabs and Hung himself. Those Slabs melted and became the as water later on.
In a Cricket Game, Two Batsman playing each on 94* . They need 7 runs to win the Game in 3 balls. How can they both make Hundred without getting out or RetiredHurt ?
Yes, there is only one possible way that should happen in the Game.
Ball1 : First batsman hits the ball and it passes the WicketKeeper and touches the Keeper's Helmet. Umpire signs 5 runs to the batsman which moves him to 99.
Ball2 : Makes a Quick single and Finishes his Hundred by putting the Game on Tie.
Ball3 : Another Batsman(on 94*) will go for a Six to finish the Game as well as his Hundred.
1
2
3
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