Related Questions

The average marks obtained by a group of 16 students was 20. One student left the group as a result of which the average of the remaining students rose to 21. But another student joined, as a result of which the average marks of the group dropped a bit and became 20.5. What was the average marks obtained by the student who left and the one who joined?
ক 10
খ 11
গ 8
ঘ 9
The total number obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What is the average mark obtained by him in Physics and Mathematics together?
ক 40
খ 60
গ 120
ঘ Cannot be determined
In an examination, a student has to secure 40% marks to pass. One student got 40 marks and failed by 40 marks. What was the total marks in the examination?
ক 100
খ 200
গ 300
ঘ 400
In order to pass an examination, a student is required to get 35% of the maximum marks. If a student scored a total of 381 marks and failed by 144 marks, determine the maximum marks for the examination.
ক 1,350
খ 1,500
গ 1,750
ঘ 2,000
যদি দুটি সংখ্যার অনুপাত ৮ঃ৫ হয়, তবে নীচের কোন সংখ্যাটি ঐ দুটি সংখ্যার যোগফল হতে পারবে না?
ক 52
খ 105
গ 143
ঘ কোনোটিই নয়
The average monthly income of P and Q is Tk.5050. The average monthly income of Q and R is Tk.6250 and the average monthly income of P and R is Tk.5200. Calculate the monthly income of P.
ক Tk.4000
খ Tk.6100
গ Tk.6400
ঘ Tk. 16500
The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtained by all students?
ক 10
খ 8
গ 12
ঘ 15
The average mark obtained by 10 students was 6 and the average mark obtained by 6 other students was 10. What was the average mark obtained by all 16 students?
ক 10
খ 8
গ 7.5
ঘ 8.5
The average mark obtained by 10 students was 6 and the average mark obtained by 6 students was 10. What is the average mark obtained by all 16 students ?
ক 10
খ 8
গ 7.5
ঘ 8.5
Two student appeared at an examination. One of them secured 9 makes more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are :
ক 39, 30
খ 41, 32
গ 42, 33
ঘ 43,34

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