A and B can do a work in 15 days, B and C can do it in 20 days. If B alone can do it in 60 days, in what time will A and C do it together?
15 days
17 days
16 days
18 days
12 days
The ratio of two numbers is 3 : 7. If 4 is added to the greater number and 4 is subtracted from the smaller number, the greater number becomes three times the smaller one. Find the numbers.
12, 28
18, 42
24, 56
21, 49
15, 35
What is the average speed of Mary if she drives 6 hours at 50 km/hr and the next 8 hours at 60km/hr?
50.57 km/hr
52.73 km/hr
55.71 km/hr
48.73 km/hr
45.32 km/hr
Two times of a natural number is subtracted from its square and the result is 35. Find the number.
5
7
9
6
8
What percent of a 56-hour week is 35-hour schedule?
52%
58%
62.5%
65.8%
55.6%
If the pth term of an AP is q and the qth term is p, the nth term is,
P2 – q2
p + q – n
p + q
0
1
In the xy plane the equation of a line l=2x+5, if m is the reflection of the line in x axis ,what is the equation of line m?
If 30 percent of 40 percent of a positive no is 20% of w percent of the same number then what is the value of w?
The least integer in a set of Consecutive integers is -25,if the sum of these integers is 26,how many integers
are there in the set?
set A has x members and set B has y members.Set C contains all the members from set A and setB with the
exeption of k common members(k>0) between set A and B.which represents the no of members in set C?
IF 2x<y<0;which of the following is greatest?
IF 2x-5,x+1,3x-8 are all integers and x+1 is the median of all these integers,then what is the value of x?
If x^2+y^2=73, and xy=24,what is the value of (x+y)^2?
A number n is increased by 6 and then the resultant is multiplied by 3,this result is then decreased by 6.Finally that result is divided by 3,in terms of n what is the final result?
The function f where f(x)=(x+1)^2 is defined for -2<=x<=2.what is the range of f?
IF two sides of a triangle have sides 5,6; then the perimeter of the triangle could be.
1)11
2)15
3)24