. A group of labourers are building a villa. After half the villa has been built, double the number of labourers joins the original group. The villa is completed 8 days earlier. What is the total number of days needed to complete the wall by the initial group of men?
In each of the following questions two statements and four conclusions are given. Choose the conclusion which logically follows.
15. Statements: No pen is sword.
All swords are switches. Conclusions:
1. No pen is a switch
2. No switch is a pen
3. Some switches are swords
4. All the switches are swords
If P x Q means ‘P is the brother of Q’, P ÷ Q means ‘P is the son of Q’ and P – Q means ‘P is the sister of Q’, then which of the following relations will show that Q is the maternal uncle/aunt of P?
a. Q x R ÷ P
b. Q x R ÷ P
c. P x R – Q
d. P ÷ R - Q