Direction: Read the following information and answer the following question: P × Q’ means ‘P is son of Q’. ‘P + Q’ means ‘P is daughter of Q’. ‘P ÷ Q’ means ‘P is wife of Q’. ‘P – Q’ means ‘P is father of Q’.

1.  

If it is provided that M is grandmother of P, then what will come in place of ? in expression – ‘P – H ÷ T ? M’?