(Ans). (B)
(Question). If J is the least positive integer that is divisible by every integer from 10 to 15 inclusive, then J/26 is =
Options:
(A) 1155
(B) 2310
(C) 4620
(D) 30030
(E) 60060
(CoT). The integer should be divisible by: 10, 11, 12, 13, 14 and 15, that is 5*2, 11, 3*2^2, 13, 2*7, and 3*5. The least common multiple of these integers is the product of 13, 11, 7, 5, 3 and 2^2. Then, R/26 is (13 * 11 * 7 * 5 * 3 * 2^2)/2 * 13 = 11*7*5*3*2 = 2310.

(Ans). (B)
(Question). The inverse ratio of 9: 2: 1 is?
Options:
(A) 1:9:18
(B) 2:9:18
(C) 2:7:18
(D) 2:13:18
(E) 2:9:15
(CoT). 1/9: 1/2: 1/1 = 2:9:18

(Ans). (C)
(Question). The average amount with a group of seven numbers is Rs. 20. If the newly joined member has Rs. 50 with him, what was the average amount with the group before his joining the group?
Options:
(A) 28
(B) 27
(C) 15
(D) 19
(E) 12
(CoT). Total members in the group = 7
Average amount = Rs. 20
Total amount with them = 7 * 20 = Rs. 140
One number has Rs. 50. So, the amount with remaining 6 people = 140 - 50 = Rs. 90
The average amount with them = 90/6 = Rs. 15.

(Ans). (A)
(Question).
In the following alphabet second half is written first and then the first half is arranged in reverse order.
Then which of the following will be the 5th letter to the left of 16th letter from the right?
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Options:
(A) S
(B) Y
(C) U
(D) H
(E) K
(CoT). N O P Q R S T U V W X Y Z M L K J I H G F E D C B A
(16 + 5) = 21th letter from your right is S.