Related Questions

একজন চাকরিজীবীর আয় ও ব্যয়ের অনুপার ২০ঃ ১৫ হলে, তার মাসিক সঞ্চয় আয়ের শতকরা কত অংশ?
A ৩০%
B ১৫%
C ২০%
D ২৫%
একটি ট্রান্সফরমারের প্রাইমারি ও সেকেন্ডারি তারের ঘূর্ণনের অনুপাত 20ঃ 1 এবং সেকেন্ডারিতে 20 omega রোধ লাগানো আছে। যদি প্রাইমারিতে 220 V প্রয়োগ করা হয় তাহলে এর মধ্যে বিদ্যুৎ প্রবাহ হবে-
A 0.55 A
B 27.5 mA
C 27.5 A
D 5.5 mA
The average age of a family of 6 members is 25 years. After a 45- yers old member leves the family, what is the average age ( in years) of the family?
A 22
B 21
C 20
D 19
3 years ago, the average age of a family of 5 members was 17 years. A baby having been born the average age of the family is the same today. The present age of the baby is
A 1 year
B 1 year 6 months
C 2 years
D 3 years
Two years ago the average age of a family of 8 members was 18 years , After the addition of a boy the average age of the family remains the same today. What is the age of the baby.
A 1 year
B 3 years
C 2 years
D 4 years
A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
A $$28\frac{4}{7}$$ years
B $$31\frac{5}{7}$$ years
C $$32\frac{1}{7}$$ years
D None of these
If two times of the daughter's age in years is included to the mother's age, the total is 70 and if two times of the mother's age is included to the daughter's age the total is 95. So the Mother's age is -
A 38
B 30
C 40
D 41
The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older . If the ages of these two are excluded, the average , the average age of the remaining players is one year less than the average age of the whole team. what is the average age of the whole team?
A 23 years
B 24 years
C 25 years
D 26 years
3 years ago, the average age of a family of 5 members was 17 years. With the birth of a new baby, the average remains the same even today. Find the age of the baby.
A 1 year
B 2 year
C 2.5 year
D 3 year
The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older than him. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team?
A 23
B 24
C 25
D None

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