2012

1

A political party orders an arch for the entrance to the ground in which the annual convention

is being held. The profile of the arch follows the equation y = 2x - 0.1x^2 = âˆ’ where y is the height

of the arch in meters. The maximum possible height of the arch is

A. 8 meters
B. 10 meters
C. 12 meters
D. 14 meters

2

An automobile plant contracted to buy shock absorbers from two suppliers X and Y. X supplies

60% and Y supplies 40% of the shock absorbers. All shock absorbers are subjected to a quality

test. The ones that pass the quality test are considered reliable Of X's shock absorbers, 96% are

reliable. Of Y's shock absorbers, 72% are reliable.

The probability that a randomly chosen shock absorber, which is found to be reliable, is made by Y is

A. 0.288
B. 0.334
C. 0.667
D. 0.720

3

Which of the following assertions are CORRECT?

P: Adding 7 to each entry in a list adds 7 to the mean of the list

Q: Adding 7 to each entry in a list adds 7 to the standard deviation of the list

R: Doubling each entry in a list doubles the mean of the list

S: Doubling each entry in a list leaves the standard deviation of the list unchanged

A. P, Q
B. Q, R
C. P, R
D. R, S

4

Given the sequence of terms, AD CG FK JP, the next term is

A. OV
B. OW
C. PV
D. PW

5

Wanted Temporary, Part-time persons for the post of Field Interviewer to conduct personal

interviews to collect and collate economic data. Requirements: High School-pass, must be

available for Day, Evening and Saturday work. Transportation paid, expenses reimbursed.

Which one of the following is the best inference from the above advertisement?

A. Gender- discriminatory
B. Xenophobic
C. Not designed to make the post attractive
D. Not gender- discriminatory