If a : b = c : d = e : f = 1 : 2, then (3a + 5c + 7e) : (3b + 5d + 7f) is = ?

The sum of the salaries of A and B is Rs. 2100. A spends 80% of his salary and B spends 70% of his salary. If their sav…

If x : y = 3 : 1, then x<sup>3</sup> - y<sup>3</sup> : x<sup>3</sup> + y<sup>3…

If A : B = 7 : 9 and B : C = 5 : 4, then A : B : C is -

If an amount of Rs. 1,50,000 is shared among A, B, and C in the ratio 2 : 3 : 5, then A receives the same amount as he w…

Rs. 730 were divided among A,B,C in such a way that if A gets Rs. 3 then B gets Rs. 4 and If B gets Rs. 3.5 then C gets …

Suppose y varies as the sum of two quantities of which one varies directly as x and the other inversely as x. If y = 6 w…

In a college the students in Arts and commerce faculties were in the ratio of 4 : 5 respectively. When 65 more students …