If 4% of (P+Q) is 8 and P is a positive integer, what is the greatest possible value of Q?
If (x2-4)(4/x-5)=0, then x=?
What is the absolute value of twice the difference of the roots of the equation 5y2-20y+15=0?
Rina and shila entered into a partnersship with their capitals in the ratio 5 : 6. At the end of 8 months, Rina withdraws her capital. If they receive the profit in the ratio of 5 : 9, find how long shila's capital was used?
Three time the present age of a father is equal to eight times the present age of his son. Eight years hence the father will be twice as old as his son at that time. What are their present ages?
If x>y>0 and p>q>0, then which one of the following expressions must be greater than 1?
The average of six consecutive integers in increasing order of size is 912. What is the average of the last 3 integers?
If n is a number such that (-8)2n=28+2n, then n=?
In the figure, PS= 5 cm, QS= 6 cm and the area of △PQR is 40 cm2. What is the area of ∆QRS?
In the figure, circle P has diameter 2 and circle Q has diameter 1. What is the area of the shaded region?
A school has a total enrollment of 9- students. There are 30 students taking Physics, 25 taking English, and 13 taking both. What percentage of the students are taking either Physics or English?
Three coins are tossed. Find the probability of at least one head and one tail.