Rakesh invests Rs. 8000 at some rate of interest. Being simple interest the  money doubles in 5 years. Raj sees this and invests Rs. 6250 for 3 years at the same rate of interest. How much interest does Raj get?

Two trains of length 120 m and 90 m respectively with the same speed pass a static pole in 8 seconds and 6 seconds respectively. In what time they will cross each other if they are moving in opposite directions?

20 men could complete a work in 80 days. They worked together for 60 days, after that due to bad whether the work is stopped for 10 days. How many more men should be employed so as to complete the work in time?

To travel 432 km, an Express train takes 1 hour more than Duronto. If however, the speed of the Express train is increased by 50%, it takes 2 hours less than Duronto. What is the speed (in km / hr) of Duronto train? 

Time appears in the mirror 6: 00. Then what is the correct time in clock? 

Sanjay sold an article by giving a discount of 8 % for Rs. 17940. And make a profit of 19.6 %. If he did not give discount then how profit percentage he get? 

In a factory men, women and children were employed in the ratio 8:5:1 to finish a job and their individual wages were in the ratio 5:2:3. Total daily wages of all amount to Rs. 318. Find the total daily wages paid to each category.