If the position of the first and the sixth digits of  the sequence of numbers 8  9  0  3 2  1  4  6  7  5 are interchanged, the second and the seventh and so on. which number would be seventh from the right end ?

How many 7's are there in the following sequence which are precedede by 9 and followed by 6 ?
7  8  9  7  6  5  3  4  2  8  9  7  2  4  5  9  2  9  7  6  4  7  

A. 2

If the numbers from 5 to 85 which are exactly divisible by 5 are arranged in descending order, which would come at the eleventh place from the bottom ?

E. NONE OF THESE

How many even numbers are there in the following sequence of numbers whiich are immediately followedby an odd number as well as immediately preceded by an even number ?
8  6  7  6  8  9  3  2  7  5  3  4  2  2  3  5  5  2  2  8  1  1  9

E. NONE OF THESE

In a school, the following codes were used during physical exercise. '1' means 'start walking', '2' means 'keep standing', '3' means 'start running at the same spot', '4' means 'sit down'.
How many times will a student who performs the following sequence without error from the beginning to the end have to sit down ?
1  2  3  4  2  3  1  4  4  3  2  2  1  2  4  3  1  4  4  1  2

C. 4