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If 25% of a number is subtracted from a second number, the second number reduces to its five-sixth .What is the ratio of the first number to the second number ?
A.
Sat Dec 30 1899 01:03:00 GMT+0000 (Coordinated Universal Time)
B.
Sat Dec 30 1899 02:03:00 GMT+0000 (Coordinated Universal Time)
C.
Sat Dec 30 1899 03:02:00 GMT+0000 (Coordinated Universal Time)
D.
None of these
উত্তর : B.
Sat Dec 30 1899 02:03:00 GMT+0000 (Coordinated Universal Time)
সম্পর্কিত প্রশ্ন সমূহ
A person has to cover a distance of 6 km in 45 minutes. If he covers one-half of the distance in two-thirds of the total time; to cover the remaining distance in the remaining time , his speed (in km/hr ) must be :
A.
6
B.
8
C.
12
D.
15
How may seconds will a 500 meter long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr ?
A.
25
B.
30
C.
40
D.
45
TK. 800 becomes TK. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will TK. 800 become in 3 years ?
A.
1020.8
B.
1025
C.
1052
D.
None of these
The percentage increase in the area of a rectangle , if each of its sides is increased by 20%, is :
A.
0.4
B.
0.42
C.
0.44
D.
0.46
If $A + B = 2C$ and $C + D = 2A$ , then
A.
A + C = B + D
B.
A + C = 2D
C.
A + D = B + C
D.
A + C = 2B
In a class of 60, where girls are twice that of boys , Kamal ranked seventeenth from the top . If there are 9 girls ahead of Kamal , how many boys are after him in rank ?
A.
3
B.
7
C.
12
D.
23
If $m$ and $n$ are whole numbers such that $m^n = 121$, then the value of $(m-1)^{n+1}$ is :
A.
1
B.
10
C.
121
D.
1000
If selling price of an article is $\frac{3}{4}$ of its cost price , the profit in the transaction is :
A.
16(2/3)%
B.
20(1/2)%
C.
25(1/2)%
D.
33(1/3)%