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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.
A99
B89
C79
D69
উত্তর : A.
ভেরিফাইড99
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
How many terms of the arithmetic progression 2,7,12,... should be taken so that their sum equals 354?
A.
10
B.
11
C.
12
D.
13
In a simultaneous throw of a pair of dice, what is the probability of getting a total more than 8?
A.
B.
C.
D.
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