[" 36.Ioos at "2000" * the all than "],[" fort the "30,36" th "80" " frum for "t],[[" (1) "1451," (2) "164],[" (3) "1712," (4) "1523]]

Calculate arithmetic mean , median and mode of the following series : {:("Marks",,"Number of Students"),("Less than 10",," "12),("Less than 20",," " 26),("Less than 30",," "40),("Less than 40",," "58),("Less than 50",," "80),("Less than 60",," "110),("Less than 70",," "138),("Less than 80",," "150):}

Write all the prime numbers between . (i) 10 and 40 , (ii) 80 and 100, (iii) 40 and 80, (iv) 30 and 40

Find all the Zeroes of -10x2 t.31x30 ir 2 is a zero of it.

The n^(th) term of the sequence 4,14,30,52,80,114, . . . ., is

The n^(th) term of the sequence 4,14,30,52,80,114, . . . ., is

The median of the following data is {:("Marks obtained ","No. of students "),("less than 20",0),("less than 30",4),("less than 40",16),("less than 50",30),("less than 60",46),("less than 70",66),("less than 80",82),("less than 90",92),("less than 100",100):}

Prove that: \ t a n 20^0t a n 30^0t a n 40^0t a n 80^0=1

Find t_(n) for following A.P., and then find 30th term of A.P. 3,8,13, 18,…….

Find t_(n) for following A.P., and then find 30th term of A.P. 3,8,13, 18,…….