A man sells an article at 10% profit. Had he bought it at 20% less and sold it for Rs. 10 less, he would have gained 25%. Find the cost price. MCQ with Answer and Explanation

A man sells an article at 10% profit. Had he bought it at 20% less and sold it for Rs. 10 less, he would have gained 25%. Find the cost price.

A. Rs. 80

B. Rs. 100

C. Rs. 90

D. Rs. 110

Answer: Option B

CP=x, SP=1.1x. New CP=0.8x, new SP=1.1x-10. 1.1x-10 = 1.25×0.8x = x → 0.1x=10 → x=100.

This question belongs to: Maths Percentage

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Question #1 Report Error

What is 80 decreased by 25%?

A. 70

B. 50

C. 60

D. 80

Correct Answer: Option C

Explanation:
25% of 80 = 20. 80 - 20 = 60.

This question belongs to: Maths Percentage

Question #2 Report Error

40% read newspaper A, 50% read B, 10% both. % read neither:

A. 10%

B. 20%

C. 25%

D. 15%

Correct Answer: Option B

Explanation:
At least one = 40+50-10=80%, neither = 20%.

This question belongs to: Maths Percentage

Question #3 Report Error

Mixture 40 L milk-water with 10% water. Water added to make 20%:

A. 6 L

B. 8 L

C. 5 L

D. 4 L

Correct Answer: Option C

Explanation:
Water=4 L, milk=36 L. New total = 36/0.8 = 45 L, water added = 5 L.

This question belongs to: Maths Percentage