Quantitative Aptitude - Arithmetic Ability Questions

The ratio of two numbers is 5 : 6. If their product is 1470, then what is the sum of both the numbers?

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?

What is the value of (cosecA - cotA) / (secA + tanA)?

If a2+1a2 = 38, then find the value of a-1a?

If -3/2 + (2/3)(3x + 9) = x/2, then what is the value of x?

30% discount is offered on an item. By applying a promo code the customer wins 10% cash back. What is the effective discount?

What is the difference of the cube and square of the common root of (x2 – 8x + 15) = 0 and (y2 + 2y – 35) = 0?

A man starts walking from a place X and reaches the place Y in 12 hours. He travels 3/7th of the total distance at the speed of 3 km/hr and the remaining distance at the speed of 4 km/hr. What is the distance (in km) between X and Y?