self Maths Puzzle

The angle of elevation of the sun, when the length of the shadow of a tree 3 times the height of the tree, is:

A. 30º B. 45º
C. 60º D. 90º

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self Other Question

A bank offers 5% compound interest calculated on half-yearly basis. A customer deposits Rs. 1600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is:

A. Rs. 120 B. Rs. 121
C. Rs. 122 D. Rs. 123 The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is:

A. 625 B. 630
C. 640 D. 650