Quantitative Aptitude - Arithmetic Ability Questions

If 11+11+11+1x = 58, then what is the value of x?

The areas of two similar triangles ΔABC and ΔPQR are 121 sq cms and 64 sq cms respectively. If PQ = 12 cm, what is the length (in cm) of AB?

The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?

If one-third of a number is 45, then what will be the 45% of that number?

If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?

The cost price of an article is x. It is marked up by 120%. It is sold at Rs 8800 after giving 20% discount. What is the value (in Rs) of x?

The mean of marks secured by 50 students in division A of class X is 61, 25 students of division B is 57 and that of 50 students of division C is 55. What will be the mean of marks of the students of three divisions of Class X?

A boy running at 10/9 th of his actual speed covers 39 km in 2 hours 20 minutes and 24 seconds. Find the actual speed of the boy (approx.)