In a sweet, one third is suger if the price of suger now is of the previous price. what is the effective percentage increase in the cost of the sweet?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. %.
Let original cost of sweet = 1
Sugar = 1/3
Other ingredients = 2/3
New sugar price = 7/6 of old price
New cost of sweet:
= Sugar part + Other part
= (1/3 × 7/6) + 2/3
= 7/18 + 12/18
= 19/18
Increase: = 19/18 − 1 = 1/18
Percentage increase: = (1/18) × 100 = %