Gurmeet purchased a box of chocolates. She ate 20% of them and gave 25% of the remaining chocolates to her friends. Of the remaining chocolates, she ate 20% of it and gave 25% of the remaining chocolates to her friends. Then, she gave 20 chocolates to a guest. Finally, she is left with 35% of the chocolates that she initially had. How many chocolates did Gurmeet eat?
Explanation:
Assuming that the box contains x number of chocolates.
Remaining = 0.36x
After giving chocolates to friends, she gives 20 chocolates to guests also.
∴ Remaining chocolates with her = 0.36x – 20 = 0.35x
⇒ 0.01x = 20
⇒ x = 2000
∴ She had 2000 chocolates at the start.
She ate 0.2x + 0.12x = 0.32x = 640 chocolates
Hence, option (c).
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