Question

"x" will be

Answer 1

Here $MeMgBr$ acts as base as well as nucleophile.
Acid-base reaction occurs at $-OH$ and $-SH$ centres consuming one mole of $C{H}_{3}MgBr$ by each one.
Nucleophilic attack occurs at acyl and ester centres where 2 mole of $C{H}_{3}MgBr$ are comsumed by each one.
$\therefore$ 7 moles of $C{H}_{3}MgBr$ will be required.