21 38 59 84 113 ?

Given the marks of ten students , calculate standard deviation and coefficient of variation : 70 , 80 , 90 , 85 , 65 , 55 , 75 , 84 , 97 , 59

113^3 =

6.5 11.8 22.4 38.3 59.5 87.3 117.8

21 is related to 3 in the same way as 574 is related to______. 1)23 2)82 3)97 4)113 5)None of these

21 : 3 : :· 574:? (A) 23 (B) 82 (C) 97 (D) 113

. Find the median of the given data: 23, 55, 38, 29, 35, 45, 31, 59, 25

Which term of the A.P. 21 ,\ 42 ,\ 63 ,\ 84 ,\ dot is 420?

Which term of the arithmetic progression 21, 42, 63, 84, … is 420 ?

Which term of the AP 21, 42, 63, 84,.. Is 210?