The total of the ages of a class of 60 girls is 900 years. The average age of 20 girls is 12 years and that of the other 20 girls is 16 years. What is the average age of the remaining girls?
15 years
None of these
14 years
17 years
16 years
(20)12 + 20(16) + 20x = 900
20x = 900 − 240 − 320
20x = 340
x = 17 years
This has been asked in Question Paper
IBPS Clerk Prelims 2016
AttemptMore Questions From Paper
Chapters. Alphanumeric
What should come in place of the questions mark (?) in the following series based on the above arrangement?
AZ2 DW3 GT5 JQ7?
Chapters. Pipes and cisterns
Two pipes A and B can fill a tank in 16 hrs and 12 hrs respectively. The capacity of the tank is 240 litres. Both the pipes are opened simultaneously and closed after 2 hrs. How much more water (In Liters) needed to fill the tank?
Chapters. Profit and Loss
Mr. Ankit invests 14% of his monthly income every month i.e. Rs.1,750 in shares, 8% in Insurance policies and 7% in fixed deposits. What is the total annual amount invested by him?
Chapters. Problems on Ages
The ratio of A’s age 3 years ago and B’s age 5 years ago is 4:5. If A is 4 years younger than B then what is the present age of B?
Chapters. Time and Work
A is 2.5 times as good workman as B and A is able to finish the work in 50 days less than B. Find the time in which they can do it working together.
Chapters. Boats and Stream
A person covers 32km downstream is 240 minutes and the same person cover 48 km upstream in 1440 minutes. Then find the rate of current?
Chapters. Number System
5% of one number (X) is 25% more than another number (Y). If the difference between the numbers is 96 then find the value of X?
Chapters. Coding Decoding
If in a code language, LAUNCH is written as NCWPEJ and MARGIN is written as OCTIKP, how will WONDER be written in that code?
Chapters. Simple Interest
The simple interest on a certain sum at 15% per annum for 5 year is Rs1500 more to the simple interest on the same at 12% per annum for the same period. Find the sum-
Chapters. Coding Decoding
How many such pairs of Numbers are there in the 7693142, each of which has as many Numbers between them in the number, as they have in the numeric series?
Chapters. Percentage
A dishonest vendor professes to sell fruits at the cost price but he uses a weight of 800 grams in lieu of 1 kg weight. Find his percentage gain.
Exams
IIT JEE
Support