What must be added to each term of the ratio 7 : 11 to make it equal to 3 : 4?

The monthly salary of A, B and C are in the ratio 2:3: 5. If C's monthly salary is Rs.1200 more than that of A, then B's annual salary is:

If 60% of A = 75% of B, then A : B is

IF A : B = $\frac{2}{9}$ : $\frac{1}{6}$, B : C = $\frac{2}{7}$ : $\frac{5}{21}$ and D : C = $\frac{7}{10}$ : $\frac{3}{5}$, D : E = $\frac{5}{7}$ : $\frac{3}{14}$

then

Match the LIST-I with LIST-II

Choose the correct answer from the options given below:

Three persons A, B and C start a venture with capitals ₹ 1,20,000; ₹ 90,000; and ₹ 60,000 respectively. After 4 months A withdraws ₹ 20,000; after 8 months B adds ₹ 30,000. At the end of year the profit is ₹ 2,88,000. Find C's share.

Two bags of iron ore weight 180 kg 250 gm and 270 kg 50 gm respectively. How much iron ore (in gm) must be taken out from the first bag and added to the second bag so that weight of the first bag may then be two-third of the second bag ?

What is the overall percentage of marks obtained by GP in all subjects?