Q: In how many different number of ways 7 men and 3 women can sit on a shopa which can accommodate persons?
Options:
(A) 200
(B) 230
(C) 240
(D) 250
(E) 5040
A: OK... Stream of consciousness: 10p4 = 10 X 9 X 8 X 7 = 5040
The answer is (E).

Q: One copy machine can make 25 copies a minute, and a second copy machine makes 35 copies a minute. If the two copiers work together, how long would it take them to make 4,800 copies?
Options:
(A) 30 minutes
(B) 40 minutes
(C) 60 minutes
(D) 70 minutes
(E) 80 minutes
A: OK... Stream of consciousness: Total work done by both machines in a minute = 25 + 35 = 60 copies
Total number of copies required = 6000
Time = 4800/60 = 80 mins
The answer is (E).

Q: In a school of 850 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?
Options:
(A) 277
(B) 267
(C) 153
(D) 188
(E) 151
A: OK... Stream of consciousness: 44 + 28 + 10 = 82%
100 82 = 18%
850 * 18/100 = 153
The answer is (C).

Q: In a school of 850 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?
Options:
(A) 125
(B) 627
(C) 153
(D) 721
(E) 159
A:
OK... Stream of consciousness: 44 + 28 + 10 = 82%
100 82 = 18%
850 * 18/100 = 153
The answer is (C).