Aptitude

There is a set of 30 numbers. The average of the first 10 numbers is equal to the average of last 20 numbers. What is the sum of last 20 numbers? 

• Twice the sum of the first ten numbers 

   

• Sum of first 10 numbers. 

• Twice the sum of the last ten numbers 

• Cannot be determined

Let a number ‘x’ when divided by 406 leaves a remainder 115. What will be the number when the number is divided by 29? 

• 28

• 30

• 24

• 26

A sequence of an alpha-numeric is to be formed. The sequence consisting of two alphabets followed by two numbers is to be formed with no repetitions. In how many ways can it be formed? 

• 65000 

• 64320 

• 58500 

• 67600 

According to a particular code language, A=0, B=1, C=2, …, Y=24, Z=25 then how can ONE+ONE (in the form of alphabets only) be coded? 

• DABI 

• CIDA 

• BDAI 

• ABDI 

In the sequence of problemsolvingproblemsolvingproblemsolving… what is the 2015th alphabet? 

• p 

• g 

   

• r 

• n

30 liters of 78% of a concentrated acid solution is to be prepared. How many litres of 90% concentrated acid needs to be mixed with 75% solution of concentrated acid to get the result? 

• 10 

• 6 

• 3 

• 4 

There is an office consisting of 38 people. 10 of them like to play golf, 15 like to play football and 20 neither play golf nor football. How many like both golf and football? 

   

• 10 

     

•  7 

       

• 15 

       

• 18 

How many positive integers less than 500 can be formed using the numbers 1, 2, 3, and 5 for digits, each digit being used only once. 

• 68 

• 34 

• 66 

• 52

In how many possible ways you can write 3240 as a product of 3 positive integers?

• 320

• 420

• 350

• 450

If log 27 = 1.431, then the value of log 9 is:

• 0.934

• 0.945

• 0.954

• 0.958