SSC Selection Post 2019 Matriculation Level Question Paper (14 Oct, 2019) (Shift 2)

A shopkeeper earns a profit of 15% on selling a book at 15% discount on the printed price. The ratio of the cost price and the printed price of the book is:

A can finish a work in 15 days and B can do the same work in twice the time taken by A. Then, working together, what part of the same work they can finish in five days?

A student covers a distance by cycle at 6km/h. He returns to the starting point in a bus at a speed of 42km/h. The average speed (in km/h) for the entire journey is:

The three numbers A, B, C are in the ratio
2
1
​
:
3
2
​
:
4
3
​
. The difference between greatest and smallest numbers is 21. The three numbers A, B and C respectively are:

A sum of Rs. 825 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 412.50 more is lent but at the rate twice the former. At the end of the year, Rs. 35.75 is earned as interest from both the loans. What was the original rate of interest?