Quantitative Aptitude - Arithmetic Ability Questions

If P travelled the first half of a journey at 40 kmph and the the remaining distance at 50 kmph, what is the average speed of his travel?

If C + 1C = 3, then what is the value of C-37+1C7?

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

What is the area (in sq cm) of a rectangle if its diagonal is 51 cm and one of its sides is 24 cm?

Δ DEF is right angled at E. If m ∠D = 30°. What is the length (in cm) of DE, if EF = 2√3 cm?

ΔABC is similar to ΔPQR. Length of AB is 36 cm and length of the corresponding side PQ is 16 cm. If area of ΔABC is 1296 sq cm, what is the area of ΔPQR?

Calculate the area (in cm2) of a circle of radius 17.5 cm.

If cosA = x, then x is