Quantitative Aptitude - Arithmetic Ability Questions

A solid hemisphere has radius 14 cm. It is melted to form a cylinder such that the ratio of its curved surface area and total surface area is 2 : 3. What is the radius (in cm) of its base?

Weight of Ayush and Abhishek are in the ratio of 6:11. Abhishek's weight increases by 25% and total weight of Ayush and Abhishek both increases by 40%. If total weight becomes 119 kg, then wat is the weight (in kg) of Ayush after the increment?

In these tests find the Odd figure out

In the following question, select the odd letters from the given alternatives.

The value of 8(sin6θ + cos6θ) - 12(sin4θ + cos4θ) is equal to

A sum of money becomes 77/50 of itself in 18/5 years when invested at simple interest. What is the rate (in percentage) of interest per annum?

A can do a work in 24 days and B in 40 days. If they work on it together for 10 days, then what fraction of work is left?

X does 25% of a work in 20 days. Y joins X and they together finish the remaining work in 15 days. Y alone can do the whole work in ___ days.