or
or
Let, Cost price = x
5% of cost price =
Now, 350 - 340 =
=> 10 =
=> 1000 = 5x
=> x = 200
Hints: Let cost price of an article x
When SP is 340 Tk, then gain % = 340 - x /x ×100
When SP is increased, if 5% more is gained by selling an article for 350 TK. than by selling if for 340 TK.
Then, [ (350 - x)/x ×100] - [ (340 - x)/x × 100 ] = 5
100/x [ 350 - x - 340 + x ] = 5
100/x [10] = 5
x = 1000/5 = 200 TK.
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