Quantitative Aptitude - Arithmetic Ability Questions

In a motor of 120 machine parts, 5% parts were defective. In another motor of 80 machine parts, 10% parts were defective. For the two motors considered together, the percentage of defective machine parts were

The HCF of two numbers is 12 and their LCM is 72. If one of the two numbers is 24, then the other number is

Find the odd word / letter / number from the given alternative

ΔXYZ is similar to ΔPQR. If ratio of perimeters of ΔXYZ : ΔPQR is 3:2 and if PQ = 6 cm then what is the length of XY (in cm)?

Abhinav is 2 times as good a workman as Balwant and therefore is able to finish a job in 36 days less than Balwant. Working together, they can do it in

If x+1x = 2, then x2+1x2 = ?

If x+1x2 = 3, then the value of x3+1x3 is:

Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is