1021: In a tournament each of the participants was to play one match against each of the other participants. 3 players fell ill after each of them had played three matches and had to leave the tournament. What was the total number of participants at the beginning, if the total number of matches played was 75 ?

(A) 12
(B) 10
(C) 8
(D) 15
1022: The average salary of skilled employees in a firm is Rs. 520 and that of the unskilled employees is Rs. 420. If the average salary of both the groups of employees is Rs. 500, then the percentage of skilled employees in the firm is

(a) 50

(b) 20

(c) 80

(d) 70
1023: Which of the following States lies partly to the north of the Himalayas ?

(a) Himachal Pradesh

(b) Arunachal Pradesh

(c) Jammu & Kashmir

(d) Sikkim
1024: If the earth's direction of rotation is reversed, what would be the IST when it is noon at the International Date Line ?

(a) 06.30 hrs

(b) 05.30 hrs

(c) 18.30 hrs

(d) 17.30 hrs
1025: Sex chromosomes transmit which of the following diseases?

(a) Myopia

(b) Colour blindness

(c) Longsightedness

(d) Night blindness