A has thrice as much money as that of B and B has 25% more money than that of C. If the total money of all of them is Rs. 144, then the money, which B and half of A have is?

75

Let C's money = 4R, then

ATQ

B   :   C = 5R  :  4R  and

A   :   B = 15R  :  5R

A : B : C = 15R : 5R : 4R

Here,

⇒ A + B + C = 24R

⇒ 24R = 144

⇒ 1R = 6

Therefore, B + \(\frac{A}{2}\) have = 5R +  \(\frac{15}{2}\) = 12.5R =  6 × 12.5 = RS. 75