Question

a grocer bought sugar worth rs 4500.he sold 1/3 of it at 10 % gain .At what gain % the remaining sugar be sold to have 12 % gain on the whole​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

13%

Step-by-step explanation:

Total gain on the whole = 12%

So, SP = 4500 + 12% of 4500

           => 4500 + (12/100) *4500

            => 4500 + 540 => 5040

Now, He sold 1/3 of 4500 at 10% gain.

So, 1/3 of 4500 = 1500

So, SP1 = 1500 + 10% of 1500

            => 1500 + 150 => 1650

Now, Sugar left worth = 3000

let's say he gained x% on 3000

Now,

SP1 + SP2 = SP

1650 + {3000 + x% of 3000} = 5040

=> (x/100) × 3000 = 5040 - 3000 - 1650

=> 30x = 390

=> x = 13%