Let the total number of students be 100 So sum of the age of total students = 100 x 14 = 1400 20% of the students have average of 12 = 20% of 100 x 12 = 240 40% of the students have average of 16 = 40% of 100 x 16 = 640 Average of rest of the students = 100% - 60% = 40% Required average = (1400 – 240 – 640)/40 = 13 years Alternate method: 
Which of the following is not a peripheral unit?
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
How many alphabets are immediately followed by a number, which is less than 5 in the given arrangement?
Each of the five friends among V, W, X, Y and Z has different number of chocolates. The number of persons who have more chocolates than those with X is ...
How many letters are there between the second symbol from the left end and the 5 th number from the right end in the given arrangement?
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
L_UA_Z_N_AP_L_U_PZ
Which box contains maximum candies?
I. Box A has candies more than Box C and Box E but not more than Box B and Box D.
II. The sum of candi...
__________ characteristics is used to compute dynamically the results from Excel data.
Find the next term in the series: CNP, FPR, IRT, ?
Which of the following is the sum of the 15th element from the left end and the 11th element from the right end of the series?
