Directions (next five questions) : What will come in place of question mark (?) in the given number series
8 4 6 15 ? 236.25
8(×1/2)4(×3/2)6(×5/2)15(×2/2)52.5(×9/2)236.25
3 4 9 28 113 ?
320 320 314 290 230 ?
190 94 46 22 ? 4
123 140 106 157 89 ?
A certain sum is divided among A, B and C in such a way that A gets INR 40/- more than the 1/2 of the sum. B gets INR 120/- less than 3/8th of the sum and C gets INR 200/-. What is the total sum