Quantitative Aptitude - Arithmetic Ability Questions

Which one of the following is true for 0°<θ<90°

Select the odd word/letters/number/number pair from the given alternatives.

If the length of the shadow of a vertical pole be √3 times the height of the pole, the angle of elevation of the sun is:­

The ratio between Ram's age and Rahim's age is 10:11. What is the age of Rahim in percentage of Ram's age

If the sum of squares of two real numbers is 41 and their sum is 9. Then the sum of cubes of these two numbers is

The mean of marks secured by 45 students in division A of class X is 56, 40 students of division B is 52 and that of 40 students of division C is 50. Find the mean of marks of the students of three divisions of Class X.

The average of 7 numbers is 30. If the average of first three numbers is 25 and that of last three numbers is 35, then what is the fourth number?

The mean score in a test of the 10 boys in a class was 15 while the overall mean of the 25 students in the class was 16.2. What was the mean score of the girls?