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
The average age of A, B And C sis 30 years. If the difference between B's age and A's age is same as the difference between C's age and B's age . If D is 40 years older than B then what is the sum of the age B and D?
A 130 years
B 60 years
C 75 years
D 100 years
8 years ago, the ratio of A's age to B's age was 4 :5 At present the ratio of B's age and C's age is 4 : 5 At present , the difference between A's age and C's age is 20 years, then what is the sum of the ages of A, B and C?
A 138 years
B 164 years
C 148 years
D 152 years
A father is three time old as old as his son. After fifteen years the will be twice as old as his sons age at that time. Hence the fathers present age-
A 36
B 42
C 45
D 48
A person was asked to state his age in years. His reply was, 'Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am' What was the age of the person ?
A 18 years
B 20 years
C 24 years
D 32 years
Eight years back Adil's age ws 1/8 th of Zabers age . ten years from now, Zaber's age will be double of Adil's age. Howm many old is Adil Now?
A 23
B 21
C 17
D 11
An iron deficiency anemia due to chronic blood loss is characterized by a raised
A Mean cell hemoglobin (MC
B Mean cell volume (MC
C Plasma bilirubin concentration
D Plasma iron concentration
E White cell count
John, twelve years old, is three times as old as his brother. How old will John be when he is twice as old as his brother?
A 15
B 16
C 18
D 20
12 year old Manick is three times as old as his brother Rahul. How old will Manick be when he is twice as old as Rahul?
A 14 years
B 16 years
C 18 years
D 20 years
Arif is 4 times as old as Bobby,in 6 years, Bobby will be twice as old as Sara. Four years from now Arif will be 36 years old,how old will Sara be in 5 years?
A None

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