Question : Leukaemia or blood cancer is characterised by abnormal increase of the

Option 1: Red Blood Cells

Option 2: White Blood Cells

Option 3: Blood platelets

Option 4: Blood plasma

Question : Select the option that expresses the given sentence in passive voice.

The officers kept us waiting for one hour.

Option 1: We were kept waiting for one hour by the officers.

Option 2: We kept waiting for one hour.

Option 3: We keep waiting for one hour.

Option 4: We are keeping waiting for one hour.

Question : How big are red blood cells in diameter?

Option 1: 7.5 μm

Option 2: 2.0 μm

Option 3: 4.0 μm

Option 4: 40.0 μm

Question : Two pipes A and B can fill a tank in 6 hours and 8 hours respectively. If both the pipes are opened together, after how many hours should B be closed so that the tank is full in 4 hours?

Option 1: $\frac{2}{3}$ hours

Option 2: $1$ hour

Option 3: $2$ hours

Option 4: $\frac{8}{3}$ hours

Question : Two inlet pipes can fill a cistern in 10 and 12 hours respectively and an outlet pipe can empty 80 gallons of water per hour. All three pipes working together can fill the empty cistern in 20 hours. What is the capacity (in gallons) of the tank?

Option 1: 360

Option 2: 300

Option 3: 600

Option 4: 900