Thirty six vehicles are parked in a parking lot in a single row. After the first

car, there is one scooter. After the second car, there are two scooters. After the

third car, there are three scooters and so on. Work out the number of scooters

in the second half of the row. 

A. 10
B. 12
C. 15
D. 17


The letters L, M, N, O, P, Q, R, S and T in their order are substituted by nine

integers 1 to 9 but not in that order. 4 is assigned to P. The difference between

P and T is 5. The difference between N and T is 3. What is the integer assigned

to N ?

A. 4
B. 5
C. 6
D. 7


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 ? 

A. 2
B. 6
C. 7
D. 8
E. 9


If the first and second digits in the sequence 5 9 8 1 3 2 7 4 3 8 are interchanged,

also the third and fourth digits, the fifth and sixth digits and so on, which digit

would be the seventh counting to your left ?

A. 1
B. 4
C. 7
D. 8
E. None of these


Nitin was counting down from 32. Sumit was counting upwards the numbers

starting from 1 and he was calling out only the odd numbers. What common

number will they call out at the same time if they were calling out at the same

speed ? 

A. 19
B. 21
C. 22
D. They will not call out the same number
E. None of these