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How many times in a day, are the hands of a cock in straight line but opposite in direction ?

A22
B24
C48
D20
উত্তর : A.
22

শেয়ার :

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সম্পর্কিত প্রশ্ন সমূহ

১.

A train 800 meters long is running at a speed of 78 km/hr . If it crosses a tunnel in 1 minute, then the length of the tunnel ( in meters ) is :

A360
B500
C540
D130
২.

If 4 (A’s capital) = 6 (B’s capital), then out of a profit of TK. 4650, C will receive :

A900
B1550
C2250
D465
৩.

Two numbers A and B are such that the sum of 5% of A and 4%of B is two-third of the sum of 6% of A and 8%of B. Find the ratio of A : B .

A

1 : 1

B

3 : 4

C

4 : 3

D

2 : 3

৪.

If the number 5 * 2 is divisible by 6, then * = ?

A3
B6
C7
D2
৫.

3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?

A10
B11
C12
D9
৬.

Which of the following trains is the fastest ?

A25m/sec
B1500m/min
C90km/hr
DNone of these
৭.

A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14, and x. He found the mean to be 12. What should be the number in place of x ?

A7
B17
C31
D3
৮.

Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square .

A3
B7
C11
D2
৯.

The interest on a certain deposit at 4.5% p.a. is TK. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ?

A22.5
B25
C20.25
D42.75
১০.

$2-[ 2 – \{ 2 – 2 ( 2 +2 ) \} ] = ?$

A-4
B6
C4
DNone of these