A shopkeeper sells an article at 10% profit. Had he bought it at 20% less and sold it for Rs. 12 less, he would have gained 25%. The cost price is: MCQ with Answer and Explanation

A shopkeeper sells an article at 10% profit. Had he bought it at 20% less and sold it for Rs. 12 less, he would have gained 25%. The cost price is:

A. Rs. 140

B. Rs. 120

C. Rs. 100

D. Rs. 150

Answer: Option B

CP=x, SP=1.1x. New CP=0.8x, new SP=1.1x-12 = x → 0.1x=12 → x=120.

This question belongs to: Maths Percentage

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Question #1 Report Error

Numerator of a fraction increased by 20%, denominator decreased by 10%, fraction becomes 2/3. Original fraction:

A. 3/5

B. 2/5

C. 1/3

D. 1/2

Correct Answer: Option D

Explanation:
(1.2a)/(0.9b) = 2/3 → (4/3)(a/b)=2/3 → a/b = 1/2.

This question belongs to: Maths Percentage

Question #2 Report Error

28% of 500 is:

A. 130

B. 120

C. 140

D. 150

Correct Answer: Option C

Explanation:
0.28 × 500 = 140.

This question belongs to: Maths Percentage

Question #3 Report Error

The value of a property depreciates at 10% per year. If its value after 2 years is Rs. 1,62,000, what was its original value?

A. Rs. 1,80,000

B. Rs. 1,90,000

C. Rs. 2,10,000

D. Rs. 2,00,000

Correct Answer: Option D

Explanation:
Original × 0.9 × 0.9 = 162000 → Original = 162000/0.81 = 200000.

This question belongs to: Maths Percentage