Related Questions

কোন পন্যের পুর্বমূল্যঃ বর্তমান মূল্য = ৫ঃ৭ হলে শতকরা মূল্য বৃদ্ধির পরিমাণ কত?
A ৪০%
B ২০%
C ৫০%
D ৩৫%
In a set of three numbers, the average of first two numbers is 2. The average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers ?
A 3
B 6
C 9
D 24
In a set of 3 numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?
A 3
B 2
C 2.5
D 3.5
The average of eight numbers in 14. The average of six of these numbers 16. The average of the remaining two numbers is 16. The average of the remaining two numbers is-
A 4
B 8
C 16
D Data inadequate
A man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?
A 2
B 3
C 4
D 3.5
E None of these
The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers. What is the difference between the first and the third of these three numbers?
A 15
B 45
C 60
D None of these
The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers . what is the difference between the first and the third of these three numbers?
A 15
B 45
C 60
D None of them
The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers .what is the difference between the first and the third of these three numbers?
A 15
B 45
C 60
D None of these
The average of 3 numbers is X. If the average of first 2 numbers is Y and the average oflast 2 numbers is Z , what is the second number?
A 2Y + 2Z -3X
B 3X -Y -Z
C 2 Y +2Z +3x
D X-Y-Z
The average of 4 numbers is X. If the average of first 3 numbers is Y and the average of last 2 numbers i Z, what is the second number
A 4X - Y -Z
B 3Y -*2Z
C 3 Y+ 2Z -4X

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