Quantitative Aptitude - Arithmetic Ability Questions

If a + b + c = 0 , then the value of a3 + b3+ c3 is

What is the value of (3/5 + 7/9)?

If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be

In ∆ABC, ∠A = 90°, AD ⊥ BC and AD = BD = 2 cm. The length of CD is

A man travelled at 40 kmph. Had he increased his speed by 16 kmph, he would have covered 80 km more in the same time. Find the actual distance travelled?

Working 10 hours a day, Aman can complete a piece of work in 18 days. How many hours a day should he work so as to finish the work in 15 days?

If (cotA - cosecA)2 = x, then the value of x is

If the three numbers in the ratio 3:2:5 be such that the sum of the squares is equal to 1862 then which number is the middle one.