Alex invested his savings in two parts. The simple interest earned on the first part at 15% per annum for 4 years is the same as the simple interest earned on the second part at 12% per annum for 3 years. Then, the percentage of his savings invested in the first part is

The side of a square whose perimeter is 25cm is

Airplanes A, B, C and D started flight towards east. After flying 125 km planes A and D flew towards right while planes B and C flew towards left. After 115 km, planes B and C flew towards their left while planes A and D also turned towards their left. In which directions are the airplanes A, B, D, C respectively flying now?

Find the missing number in the series; 196, 169, 144, ___, 100, 81.

RQP, ONM,___,IHG,FED ,find the missing letters.

Look at this series: 12, 11, 13, 12, 14, 13, … What number should come next?

One day raj left home and walked 5 km northwards, turned right and walked for 10km and turned left and walked 5 km more and finally turned left and walked 10km. How many kilometers will he have to walk to reach his home straight?

A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, then how old is B?

Two students appeared at an examination. One of them secured 10 marks more than the other and his marks was 60% of the sum of their marks. The marks obtained by them are:

Introducing a boy, a girl said, "He is the son of the daughter of the father of my father." How is the boy related to the girl?

The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be:

If the word ‘FACT’ is coded as ‘IDFW’; then how will you code ‘DEEP’