Solution for yesterday’s problem
Let the basic salary of A and B be x and y respectively.
A’s total emoluments = x+.65x = 1.65x
B’s total emoluments = y+.80y = 1.80y
By supposition, 1.65x = 1.80y
x/y = 1.80/1.65 = 12/11
x/y = 100+y’s allowances as percentage of basic salary/100+x’s allowances as percentage of basic salary
x/y = 180/165 = 12/11
A shopkeeper sells two radios at $1540 each. On radio ‘A’ he gains 10% and on radio ‘B’ he loses 10%. What is the ratio of the cost price of radio A to radio B?