The rum of money that will produce ₹1770 as simple interest in 15/2 years as 8% at per annum is.

There are errors in your problem;

please make corrections.

I = Po*r*t = 1770.

r = 0.08
t = (15/2)yrs. = 7.5 yrs.
Po = ?.

2950

3200

To find the principal (P) or the "sum of money" in this problem, we can use the formula for simple interest:

Simple Interest (SI) = (P * R * T) / 100

Where:
SI = Simple interest
P = Principal (Sum of money)
R = Rate of interest per annum
T = Time in years

Given:
SI = ₹1770
R = 8% per annum (0.08 as a decimal)
T = 15/2 years (convert to a decimal)

Step 1: Convert the time to a decimal.
15/2 years = 7.5 years

Step 2: Substitute the values into the formula and solve for P:
₹1770 = (P * 0.08 * 7.5) / 100

Step 3: Simplify the equation and isolate P:
₹1770 * 100 = P * 0.08 * 7.5

Step 4: Solve for P:
P = (₹1770 * 100) / (0.08 * 7.5)

P = ₹236,000

Therefore, the sum of money (principal) that will produce ₹1770 as simple interest in 15/2 years at a rate of 8% per annum is ₹236,000.