self Maths Puzzle Numerical Ability Sequence and Series

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

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self Other Question

From a point P on a level ground, the angle of elevation of the top tower is 30º. If the tower is 100 m high, the distance of point P from the foot of the tower is:

A. 149 m B. 156 m
C. 173 m D. 200 m
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