Quantitative Aptitude - Arithmetic Ability Questions

A cylindrical vessel of height 5 cm and radius 4 cm is completely filled with sand. When this sand is poured out it forms a right circular cone of radius 6 cm. What will be the height of this cone? (Take π = 22/7)

What is the simplified value of sec4θ – sec2θ tan2θ?

What is the simplified value of (cos4 A – sin4 A)?

What is the value of x3-1x3+8 when 8x-8x-16=0 ?

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

If the ratio of cost price and selling price be 10:11, then the profit percentage is

A can make a cupboard in 10 days and B can do it in 50 days. Along with C, they did the job in 6.25 days only. Then in how many days C alone can do the job?

Among three numbers, the first is twice the second and thrice the third, If the average of three numbers is 517, then what is the difference between the first and the third number?