P=(40% of A)+(65% of B), Q=(50% of A)+(50% of B), A>B. Which is certainly correct?

If (a + b) : (b + c) : (c + a) = 5 : 7 : 6, then what is the value of (a - b + c) : (a + b - c) ?

A bag contains coins of Rs. 2, Re. 1 and 50 paisa in the ratio 6 : 7 : 15 respectively. If the total amount in the bag is Rs. 1590, then the number of 1 Re. coins in the bag is :

If a:b=2:3, b:c=4:5, c:d=6:7 and a=24, then the value of a+b+c+d will be

If 36% of A = 64% of B, then A:B =

Three numbers are in the ratio 3 : 4 : 5. The total of the largest and the smallest numbers is equal to the other number plus 52. Accordingly, which is the smallest number?