Question : The perimeter of a sector of a circle of radius 7.4 cm is 20.6 cm. The area of this sector is:

Option 1: 42.92 cm²

Option 2: 5.8 cm²

Option 3: 10.73 cm²

Option 4: 21.46 cm²

Question : The point P is the midpoint of the segment AB. The coordinates of point P are (2, 1) and that of point A are (11, 5). The coordinates of point B are:

Option 1: (–7, –3)

Option 2: (6.5, 3)

Option 3: (7, 3)

Option 4: (–6.5, –3)

Question : Blood fails to clot while flowing in the blood vessel because of the presence of 

Option 1: Heparin

Option 2: Prothrombin

Option 3: Haemoglobin

Option 4: Hirudin

Question : The value of $2 \frac{3}{5} \div\left[2 \frac{1}{3} \div\left\{4 \frac{1}{3}-\left(2 \frac{1}{2}+\frac{2}{3}\right)\right\}\right]$ is equal to:

Option 1: $1 \frac{3}{10}$

Option 2: $2 \frac{7}{10}$

Option 3: $2 \frac{3}{7}$

Option 4: $1 \frac{3}{7}$

Question : If $P:Q=1: 3, Q:R=3:4,$ and $R: S=2:1$, then what is the value of $P:S$?

Option 1: $3:1$

Option 2: $2:1$

Option 3: $1:2$

Option 4: $3:2$