Quantitative Aptitude - Arithmetic Ability Questions

If (6x ­- 1) -­ (8x -­ 5) = 7, then the value of x is _______ .

If a1-2a+b1-2b+c1-2c = 12, then 11-2a+11-2b+11-2c value is

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?

In a school 60% of the students are girls. If number of boys is 480, then what is the total number of students in the school?

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?

If x = 1 + √2 + √3, then the value of x2-2x-4=0

Reflection of the point (-3,6) in the x-axis is

A shopkeeper by selling 23 Lotto shoes, earns a profit equal to the selling price of 7 Lotto shoes. His profit percentage is