Quantitative Aptitude - Arithmetic Ability Questions

Find the area (in cm²) of a semi-circle of radius 35 cm.

In a bag the ratio of red balls to green balls is 4 : 9. If 6 more green balls were added to the bag, the ratio of red balls to green balls would become 1 : 3. How many red balls are there in the bag?

Find the LCM of 12, 16, 20 and 24.

Find the Greatest Common Factor of 280 and 144.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

If sec (4x - 50°) = cosec(50° - x), Then the value of x is

What is the value of 1.23+0.83+0.73-2.0161.351.22+0.82+0.72-0.96-0.84-0.56 =

The mean of the data 1, 2, 10, 18, 3, 17, 19 is