Quantitative Aptitude - Arithmetic Ability Questions

To travel 732 km, an Express train takes 6 hours more than Rajdhani. If the speed of the Express train is doubled, it takes 3 hours less than Rajdhani. The speed of Rajdhani is

A milkman buys milk at Rs 24 per litre. He adds 1/5 of water to it and sells the mixture at Rs 32 per litre. What will be his gain (in %)?

When a number is increased by 24, it becomes 115% of itself. What is the number?

Choose the word which is least like the other words in the group.

The difference of compound interest and simple interest for 3 years and for 2 years are in ratio 23 : 7 respectively. What is rate of interest per annum (in %)?

A can do a work in 8 days, B can do the same work in 10 days and C can do the same work in 12 days. If all three of them do the same work together and they are paid Rs 7400, then what is the share (in Rs) of B?

3/8 as a decimal

45 men or 60 boys can do a piece of work in 20 days. How many days will 15 men and 20 boys take to complete the work?