Quantitative Aptitude - Arithmetic Ability Questions

A money lender lends Rs. 400 for 3 years to a person and lends Rs. 500 for 4 years to the other person at the same rate of simple interest. If altogether he receives Rs. 160 as interest, what is the rate of interest per annum ?

Average of the marks of 132 students of a college is 40. If the average of the marks of the passed students is 42 and the average of the marks of the failed students is 20, then what will be the respective ratio of the total marks of passed students and the total marks of failed students?

√[(1 ­ sinA)/(1 + sinA)] is equal to?

The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is

If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to

Tanya got an increment of 15% in her salary. If her enhanced salary is Rs.14,030. What was her original salary?

ΔXYZ is right angled at Y. If m∠X = 30 deg, then find the value of (sinZ + √3).

A bag contains coins of denominations Rs.1, Rs.5 and Rs.10. Assuming there are equal number of Rs.1, Rs.5 and Rs.10, what will be the total number of coins in the bag be if the total money is Rs. 368?