Related Questions

In a sample of 50 people, 19 had type O blood, 22 had type A blood, 7 had type B blood and 2 had type AB blood. If a person is selected randomly, find the probability that the person has neither type A nor type O blood?
ক 15/25
খ 31/50
গ 11/25
ঘ 9/50
K produces 100 parts twice as fast as G does. G produces 100 parts in 40 minutes. If each produces parts at a constant rate, how many parts will K produces in 6 minutes.
ক 30
খ 25
গ 20
ঘ 15
In asthmatics, mast cell degranulation produced by interaction between antigen and antibody on the cell surface in inhibited by:
ক Disodium chromoglycate
খ Acetylcholine
গ Promethazine
ঘ Cimetidine
ঙ Salbutamol
A man whose blood group is not known meet with a serious accident and needs blood transfusion immediately. Which one of the blood group mentioned below and readily available in the hospital will be safe for transfusion?
ক O, Rh-
খ O, Rh+
গ AB, Rh-
ঘ AB, Rh+
An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is
ক B or A
খ AB or A
গ A or O
ঘ AB or B
Person having blood group 'B' can donate the blood to person having blood group
ক A and O
খ B and O
গ A and AB
ঘ B and AB
Antibody is absent in the blood group of-
ক B
খ A
গ O
ঘ AB
Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously , how many seconds will it take for them to produce a total of 200 bolts.
ক 22
খ 25
গ 28
ঘ 32
Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce total of 200 bolts?
ক 22
খ 25
গ 28
ঘ 32
Switching of a lamp in house produces noise in the radio. This is because switching operation produces
ক Arcs across separating contacts
খ Mechanical noise of high intensity
গ Both mechanical noise and arc between contacts
ঘ None of the above

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