Material Requirements Planning$\_($MRP$).$

What number should be placed in the spot presently filled with the $x?$

$($Refer to Slides $34$ to $37$ in Chapter $03-$or$-$Pages $82$ through $88$ in the textbook$)$

$\backslash$table$[[$Finished Product A$,$JAN,FEB,MAR,APR$],[$Gross Requirements,$40,40,100,60],[$Schedule Receipts,,$50,,],[$Planned Delivery,,,$x,],[\backslash$table$[[$Projected on Hand$],[$Inventory$]],\backslash$table$[[$Beginning$],[$Inventory$],[=60$