সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
The average age of 12 students is 20 years. If the age of one more student is included the average decreases by 1, what is the age of the new student?
The average age of 12 students is 20 years. If the age of one more student is included the average decreases by 1, what is the age of the new student?
- ক. 5
- খ. 7
- গ. 9
- ঘ. 11
সঠিক উত্তরঃ 7
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- The present age of Noman is thrice the present age of Shamim who is 20. How many years ago was the age of Noman five times that of Shamim?
- Arif has a brother one-third his age and a sister three times his age. If the combined ages of all 3 children is 5 less than twice the oldest, how old is Arif?
- A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, then how old is B?
- After x years Sujan will be y years old. After z years Sujan will be--
- Jafar is n years old. Moin is 5 years younger than Jafar and 3 years older than Arif. What is the sum of the ages of all three?
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