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সম্পর্কিত প্রশ্ন সমূহ
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
Person 1 to 4 receive equal shares of an income, while Person 5 receives half of what each of Persons 1 to 4 receives. If the total Income is 18000 taka, how much does Person 5 get?
A.
1500
B.
2000
C.
2500
D.
3000