The average age of the 20 aspirants of a class is 19.2 years. After some time two more aspirants join them and then average is increased by 0.3 years. Find the difference between the age of new aspirants .

A 12
B 15
C 18
D None of these

Correct Answer: None of these

Bissoy MCQ
#গণিত #শতকরা (Percentage) #Combined Bank (সমন্বিত ব্যাংক) #জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

Related Questions

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
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D 100 years
The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group. What is the average age of the group. What is the average age of the two new students who joined the group?
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The average age of a group of 15 employees is 24 years. If 5 more employees join the group, the average age increases by 2 years. Find the average age of the new employees?
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The average age of a group of 15 employees is 24 years. If 5 more employees join the group, the average age increases by 2 years. Find the average age of the new employees.
A 35
B 30
C 24
D 32
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 are of a group of 15 employing is 24 years, If 5 more employees join the group., the average age increases by 2 years. Find the average age of the new employ?
A 35
B 30
C 24
D 32
The average age of a group of 12 students is 20 years, If 4 more students join the group, the average age increases by 1 year, the average age of the new students is
A 28
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The average age of a group of 12 students is 20 years, If 4 more students Join the group, the average age increases by 1 year, the average age of the new student is-
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Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?
A 81
B 81.5
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