[Senior Technical Assistant, 2022]

1. Six years ago, the ratio of the ages of Kunal and Sagar was 6:5. Four years hence, the ratio of their ages will be 11:10. What is Sagar's age at present?

[Senior Technical Assistant, 2022]

2. A wholesale tea dealer has 408 kilograms, 468 kilograms and 516 kilograms of three different qualities of tea. He wants it all to be packed into boxes of equal size without mixing. Find the capacity of the largest possible box.

[Senior Technical Assistant, 2022]

3. If the LCM of two numbers is 750 and their product is 18750. Find the HCF of the numbers.

[Senior Technical Assistant, 2022]

4. An amount of 2430 is divided among A, B and C such that if their shares be reduced by Rs.5, Rs.10 and Rs.15 respectively, the remainders shall be in the ratio of 3:4:5. Then, B's share was:

[Senior Technical Assistant, 2022]

5. From the time the front of a train enters a platform, it takes 25 seconds for the back of the train to leave the platform, while travelling at a constant speed of 54 km/h. At the same speed, it takes 14 seconds to pass a man running at 9 km/h in the same directions as the train. What is the length of the train and that of the platform in meters, respectively.