Quantitative Aptitude - Arithmetic Ability Questions

The ratio of the present ages of Reena and her husband is 4 : 5. 8 years from now, ages of her husband and her son will be in the ratio 24 : 9. If the present age of Reena is 32 years, then what will be her son’s present age (in years)?

What is the distance between the points (4,7) and (­1,­5)?

A boy crosses a 300 metres wide road in 30 seconds. What is his speed (in km/hr)?

What is the value of Cot 45° - (1/√3)Cosec 60°?

The rate of simple interest for which a sum of money becomes 5 times in 8 years is

Which of the following ratio is greatest?

What is the HCF of 36, 72 and 126?

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?