JEE Main 20265 Apr, Evening shiftMathematicsEasySequence and Series179× since 2002Let A1,A2,A3,…,A39A_1, A_2, A_3, \dots, A_{39}A1,A2,A3,…,A39 be 39 arithmetic means between the numbers 59 and 159. Then the mean of A25,A28,A31A_{25}, A_{28}, A_{31}A25,A28,A31 and A36A_{36}A36 is equal to :AOption A. 129BOption B. 136COption C. 131.50DOption D. 134CheckSkip · show solution