Let share of Raghu be 100. Then share of Mona = 90 and share of Sonu = 99
Sonu : Mona : Raghu = 99 : 90 : 100
∴ Investment of Raghu = [100/(99 + 90 + 100)] x 5780

Correct Option: B

Let share of Raghu be 100. Then share of Mona = 90 and share of Sonu = 99
Sonu : Mona : Raghu = 99 : 90 : 100
∴ Investment of Raghu = [100/(99 + 90 + 100)] x 5780
= (100/289) x 5780 = ₹ 2000

Here, p₁ : p₂ : p₃ = 5 : 3 : 1 and x₁ : x₂ : x₃ = 5 : 6 : 8
According to the formula,
Required ratio = p₁/x₁ : p₂/x₂ : p₃/x₃

Correct Option: D

Here, p₁ : p₂ : p₃ = 5 : 3 : 1 and x₁ : x₂ : x₃ = 5 : 6 : 8
According to the formula,
Required ratio = p₁/x₁ : p₂/x₂ : p₃/x₃
= 5/5 : 3/6 : 1/8
= 1 : 1/2 : 1/8 = 8 : 8/2 : 8/8 = 8 : 4 : 1

Ratio of rents of A, B, C and D
= (18 x 4) : (25 x 2) : (28 x 5) : (21 x 3)
= 72 : 50 : 140 : 63

Let the total rent be N.
Then, A's share = [72N / (72 + 50 + 140 + 63)] = 72N/325

Correct Option: B

Ratio of rents of A, B, C and D
= (18 x 4) : (25 x 2) : (28 x 5) : (21 x 3)
= 72 : 50 : 140 : 63

Let the total rent be N.
Then, A's share = [72N / (72 + 50 + 140 + 63)] = 72N/325

According to the question. 72N/325 = 720
∴ N = (720 x 325)/72 = 3250
∴ Total Rent = ͭ 3250

Time is not given in the question. So, we cannot find the profit of Ramesh.

Correct Option: D

Time is not given in the question. So, we cannot find the profit of Ramesh. Hence, the data is inadequate.

Let the capital of R = N
Then, capital of Q = 3N,
and capital of P = 6N

∴ P's capital : Q's capital : R's capital = 6N : 3N : N

Correct Option: A

Let the capital of R = N
Then, capital of Q = 3N,
and capital of P = 6N

∴ P's capital : Q's capital : R's capital = 6N : 3N : N
= 6 : 3 : 1