ഒരു ബാങ്കിൽ നാല് വർഷത്തേക്ക് ഒരു നിശ്ചിത തുക നിക്ഷേപിച്ചപ്പോൾ തുക ഇരട്ടിയായി .എങ്കിൽ പലിശ നിരക്ക് എത്ര ശതമാനമാണ് ?
The weighted arithmetic mean of first 10 natural numbers whose weights are equal to corresponding numbers is equal to
If each of the n numbers xi=i(i=1,2,3,...n) is replaced by (i+1)xi,then the new mean is
If a variable takes discrete values a+4,a-3.5,a-2.5.a-3,a-2,a+0.5,a+5,a-0.5 where a>0,Then the median of the data is
Four years ago,the average age of A and B was 18 years.Now the average age of A,B and C is 24 years.After 8 years,the age of C will be
The average weight of students in a class is 43kg.Four new students are admitted to the class whose weights are 42kg,36.5kg,39kg and 42.5kg.Now the average weight of the students of the class is 42.5 kg.The number of students in the beginning was