Quantitative Aptitude - Arithmetic Ability Questions

The price of an article is cut by 7%, to restore it to its original value, the new price must be increased by

The average salary of all workers in a workshop is Rs.12000. The average salary of 7 technicians is Rs.15000 and the average salary of the rest is Rs.9000. The total number of workers in the workshop is

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is

If a cone of radius 3.5 cm and height 9.6 cm is melted and constructed into a cylinder of the same radius, what will be the height of this cylinder? (Take π = 22/7)

The total surface area of a cuboid is 376 sq cm. Find its volume if its length and breadth are 10 cm and 8 cm respectively?

When Bablu decreases the selling price of the shoes from Rs. 360 to Rs. 345, his loss increases by 4%. The cost price of the shoes is

If cosA + cos2A = 1 then the value of sin2A + sin4A is

The sum of all prime numbers between 18 and 32 is: