Question
A class of 20 students has an average age of 19 years. 5
new students join and the average becomes 17.5 years. Find the average age of the new students.Solution
Initial sum = 20 Ă 19 = 380 years
New average = 17.5
New total = 25
New sum = 25 Ă 17.5 = 437.5 years
Sum of new = 437.5 - 380 = 57.5 years
Average = 57.5 á 5 = 11.5 years
Find the upcoming numbers in this series.
19, 28, 46, 82, 154,?
In a certain code, "ROAD" is written as "URDG." How is "FAST" written in that code?
Select the figure from among the given options that can replace the question mark (?) in the following series. Â
In a certain code language, 'CHILD' is written as â6169248' and 'GUEST' is written as '142153840'. How will 'BOOK' be written in that language?
A paper is folded and cut as shown below. How will it appear when unfolded?
What should come in place of the question mark (?) in the given series?
251, 254, 260, 269, 281, ?
Select the name from the options that is similar to the given set of names in a certain manner.
Bismillah Khan, JRD Tata, M Visvesvaraya, Sachin Tendulkar
Select the Venn diagram that best illustrates the relationship between the following classes.
Fathers, Brothers and Males
If âADMONISHâ is coded as âDAOMINHSâ in a particular language, then how will âREPEATEDâ be coded in the same language?
...Which number will replace the question mark (?) in the following number series?
 5, 4, 6, 15, 56, ?