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সম্পর্কিত প্রশ্ন সমূহ
If the radius of a right cylinder is tripled and the height is reduced by 40%, then what would the percentage change in volume?
A.
320%
B.
440%
C.
460%
D.
540%
What is the angle between the hour and minute hands of a clock at 14:50?
A.
135°
B.
140°
C.
145°
D.
150°
The average of a non-zero number and its square is 5 times the number. The number is-
A.
9
B.
17
C.
29
D.
none of these
In a simultaneous throw of a pair of dice, what is the probability of getting a total more than 8?
A.
B.
C.
D.
The H.C.F. of two number is 11 and their L.C.M. is 693. If one of the numbers is 77, find the other.
A.
99
B.
89
C.
79
D.
69
Silver is 17 times as heavy as water and copper is 7 times as heavy as water. In what ratio should these be mixed to get alloy 13 times as heavy as water?
A.
1 : 1
B.
2 : 3
C.
1 : 2
D.
3 : 2
The average of six numbers is 30. If the average of first four is 25 and that of last three is 35, the fourth number is:
A.
30
B.
28
C.
25
D.
20
A sum of TK. 600 amounts to TK. 720 in 4 years at simple interest. What will it amount to if the rate of interest is increased by 2%?
A.
750
B.
768
C.
800
D.
550
In a mixture, the ratio of the milk and water is 6:5. When 22 liter mixture is replaced by water, the ratio becomes 9:13. What is the quantity of water after replacement?
A.
62 liter
B.
50 liter
C.
40 liter
D.
52 liter