Detail solution plzz
A man who makes a profit of 25 percent by selling sugar at Rs. 4.25/kg, lowers his
price so as to gain only 5 paise per Kg. In what ratio must his sales be increased so
that his total profit may be the same as before?
(a) 5 : 18 (b) 1 : 17 (c) 17 : 1 (d) 21 : 8
If abc not equal to 0 adn 2a^2+17b^2+8c^2-6ab-20bc=0 then what is value of a+b-c/a+b+c ?
a)2/3 b)1/3 c)3/4 d)can't determine