RRB 2013 Allahabad (2)

Sum of two positive integers is 10 while their product is 24 What is the LCM of these numbers ?

A certain amount which was loaned on simple interest doubled in 10 years Then the amount received is loaned on compound interest for another 2 years on the same rate What is the total rise in the amount after 12 years with the initial principal amount ?

Length and breadth of a rectangle are in the ratio 3:4 while the perimeter of it is 56 cm.What is the area of the rectangle ?

A person used to get 15 litres of petrol for a certain amount but due to the hike in the price he is getting one litre less for the same amount What is the percentage rise in the petrol price ?

An article costs Rs. 80 to the vendor. If he marks the article for 50% more than the cost price and sells it 25% less than the marked price, what is his gain percentage ?

Two bikers A and B started for a race of 120 km with a constant speed of 30 kmph and 40 kmph respectively. After 2 hours A raised his speed and both reached the finish line at same time What was the speed of A after 2 hours of starting the race ?

The inlet to a tank can fill it in 4 hours while the outlet to the tank can empty it in 5 hours Both the pipes were opened at 9 Am but after sometime the outlet was closed and it is observed that the tank was full at 5 PM. At what time was the outlet closed ?

When product of two numbers is 768 and LCM is 96 what is the HCF of these numbers ?

One-fourth of an amount was loaned at simple interest with 2% rate of interest and the remaining part was lent on simple interest at 3% rate of interest What is the average rate of interest for the whole amount ?

The ratio of occupied seats to the vacant seats in a bus is 1:4 By the time the bus started some more passengers tried to enter the bus which would have made the ratio 4:1 But as they failed in the attempt they were seated in an empty bus with same capacity as the previous one.What is the ratio of occupied seats to the vacant seats in this bus ?