Multiple choice

A sum of money becomes Rs. 2240 in 2 yearsand Rs. 2600 in 5 years at simple interest. Find theprincipal.

  1. A.1800

  2. B.2000

  3. C.1500

  4. D.2100

  5. E.1900
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The interest for 3 years (5 - 2) is 2600 - 2240 = 360. Thus, the interest for 1 year is 120. The interest for 2 years is 240. The principal is 2240 - 240 = 2000.

AI explanation

The difference between the amounts after 5 years and 2 years represents the simple interest for 3 years, calculated as 2600 minus 2240 = 360. The simple interest for 2 years is (360 divided by 3) times 2 = 240. Subtracting this 2-year interest from the amount at 2 years gives the principal: 2240 minus 240 = Rs. 2000.

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