self Maths Puzzle


The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is:

A. Rs. 400 B. Rs. 500
C. Rs. 600 D. Rs. 800

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self Other Question

The difference between simple interest and compound on Rs. 1200 for one year at 10% per annum reckoned half-yearly is:

A. Rs. 2.50 B. Rs. 3
C. Rs. 3.75 D. Rs. 4
E. None of these

The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is:

A. 276 B. 299
C. 322 D. 345