Quantitative Aptitude - Arithmetic Ability Questions

Which of the following pairs is NOT a pair of twin primes?

Present age of Ashok is twice the present age of Kishan. After 7 years the Kishan’s age will be 4 times of the Kartik’s present age. If Kartik celebrated his 9thbirthday 3 years ago, then what will be the present age (in years) of Ashok?

The difference between Charles' and Shriya's ages is 6 years. When they married each other 30 years ago, 4 times Charle's age was the same as 5 times the age of Shriya. What is the current sum of their ages?

What is the value of |3(1) - 6|?

What would be the compound interest of Rs. 25000 for 2 yrs. at 5% per annum?

If the edge of a cube is increased by 2 cm, the volume will increase by 488 cub.cm. What then will be the length of each edge of the cube?

ΔABC is similar to ΔDEF. Length of AB is 12 cm and length of the corresponding side DE is 8 cm. What is the ratio of Perimeter of ΔABC : Perimeter of ΔDEF?

Find the volume (in cm3) of a right circular cylinder of diameter 42 cm and height 14 cm.