This question was previously asked in

DSSSB PRT General Section Official Paper - 11 Nov 2019 Shift 2

Option 3 : Rs. 437

Given:

**Cost Price of G = 460 Rs.**

According to question;

Selling Price of G = Cost Price of G - Loss

Selling Price of G = 460 - 20% of 460

Selling Price of G = 460 - (20 × 460)/100

Selling Price of G = 460 - 92

**Selling Price of G = 368 Rs.**

**The Selling Price of R and G are the same.**

So,** the Selling Price of R = 368 Rs.**

Let; Cost Priceof R = x Rs.

Selling Price of R = Cost Price of R + Profit

368 = x + 60% of x

368 = 160x/100

x = (368 × 5)/8

x = 230 Rs.

So, **Cost Price of R = 230 Rs.**

Now; **for 90% Profit:**

Selling price of R = Cost Price + Profit

Selling Price of R = 230 + 90% of 230

= 230 + 207

= 437

Hence, **437 Rs. is the correct answer.**