Question

Shreya's mother gave her 40 to buy some candies for herself. One
candy costs 5.50. She bought 6 candies. How much did Shreya
spend? She returned 5 to her mother. Did she return the correct
amount?​

Answer 1

Step-by-step explanation:

From CAT 2017 – Quantitative Aptitude – Arithmetic – Profit and Loss, we can see that,

Number of candies he bought of type 1 = n

Number of candies he bought of type 2 = n

Total candies = 2n

SP = 16.5 * 2n =33n

CP = 12n +15n = 27n

Profit = SP-CP = 6n = 150

n = 25

Total candies = 2n = 50