Which term of series 4 + 8 + 12 --- is 76

(a) Which term of the progression 4 + 8 + 12 + ... is 76 ? (b) Which term of the progression 36 + 33 + 30 + ... is zero ? (c) Which term of the progression (3)/(4)+1+(5)/(4)+..." is "12?

Which term of the series 20+16+12+... is -96

Which term of the series 3, 8, 13, 18, 23 ... is 603 ?

Which term of the series 4,2,1,..... is (1/128) ?

(i) Which term of the A.P. 4, 8, 12, ...... Is 76? (ii) Which term of the A.P. 36, 33, 30, ...... is zero? (iii) Which term of the A.P. (3)/(4), 1, (5)/(4), ...... is 12?

The next term of the series 1, 2, 4, 8, .... is:

How many terms of the series 20 + 16 + 12 amounts to 48?