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?
A 15/25
B 31/50
C 11/25
D 9/50
An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is
A B or A
B AB or A
C A or O
D AB or B
Person having blood group 'B' can donate the blood to person having blood group
A A and O
B B and O
C A and AB
D B and AB
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?
A O, Rh-
B O, Rh+
C AB, Rh-
D AB, Rh+
In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of
A Relative roughness
B Absolute roughness
C Friction co-efficient for flows at equal Reynold number
D All of the above
Which organ filters blood in human body?
A Lungs
B Heart
C Liver
D Kidneys
If the side of a square decreases by 30%, then the area of the square decreases by :
A 14%
B 21%
C 49%
D 51%
Assume that the price of product Y decreases by 5% and the quantity supplied decreases by 2%. The coefficient of price elasticity of supply for product Y is:
A Negative and therefore Y is an inferior product.
B Less than one and therefore supply is-inelastic
C More than-one and therefore supply is elastic,
D Negative & supply curve is download slopping.
কোন এক পার্কের একটি দোলনায় ঝুলতে লোহার তার ব্যবহার করা হয়েছে। কয়েকজন ছেলে-মেয়ে দোলনায় যখন দোল খাচ্ছিল তখন এক বাচ্চার অভিভাবক লক্ষ্য করেন যে, ফুলন তার 1 m থেকে বৃদ্ধি পেয়ে 1.01 m হয়েছে এবং তারটির ব্যাস হ্রাস পেয়েছে। পয়সনের অনুপাত 0.2 হলে দোলনার তারের ব্যাস কতখানি হ্রাস পায় ? (The iron wires have been used in a park to swing. When some children are swinging, the length of the wire increases from I m to 1.01 m whereas the diameter of the wire decreases which is noticed by a guardian. If Poisson's ratio is 0.2, then how much the diameter of the wire decreases?) 
A 0.15%
B 0.18%
C 2.5%
D 0.25%
E 0.2%
Resistance To Blood Flow Is
A Directly Proportional To Velocity Of Blood Flow
B Inversely Proportional To Radius Of Blood Vessel
C Inversely Proportional To Cross Sectional Area Of Blood Vessel
D Directly Proportional To Length Of Blood Vessel
E Directly Proportional To Haematocrit

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