If (a - b) is 6 more than (c + d), and (a + b) is 3 less than (c - d); then (a - c) is
(1) 0.5 .
(2) 1.0
(3) 1.5 .
(4) 2.0
If 18 binders bind 900 books in 10 days, how, many binders will be required to bind .660 books in 12 days?
1) 22
2) 14
3) 13
4) 11
Of three numbers, the second is twice the first and it is also thrice the third. If the average of three numbers is 44, the difference of the first number and the third number is
1) 24
2) 18
3) 12
4) 6
