What is the greatest integer among the following by which the number 55 + 75 is divisible ?
6
8
11
12
What is the sum of all two-digit numbers which when divided by 3 leave 2 as the remainder ?
1565
1585
1635
1655
C.
1635
If 0 < a < 1, the value of log10(a) is negative. This is justified by:
Negative power of 10 is less than 1
Negative power of 10 is between 0 and 1
Negative power of 10 is positive
Negative power of 10 is negative
The third term of a GP is 3. What is the product of the first five terms ?
216
226
243
Cannot be determined due to insufficient data
If x, x - y and x + y are the angles of a triangle (not an equilateral triangle) such that tan(x - y), tan x and tan (x + y) are in GP, then what is x equal to ?