SSC Selection Post 2020 Matriculation Level Question Paper (06 No..

The average weight of students in a class was 60.5 kg. When 8 students, whose average weight was 65 kg, joined the class, then the average weight of all the students increased by 0.9 kg. The total number of students now in the class is:

The marked price of an article is Rs. 600. If a shopkeeper gives two successive discounts of 20% and 10% on the marked price of the article, how much would be the selling price (in Rs.) of the article?

If 60% of (x−y) = 45% (x+y) and y=k% of x, then 49% of k is equal to:

Two trains are running in opposite directions on parallel tracks at the speeds of 42 km/h and 57 km/h, respectively. They take 18 seconds to cross each other. If the length of one train is 295 m, then the length (in m) of the other train is:

Three articles are bought at Rs. 400 each. One of them is sold at a loss of 10%. If the other two articles are sold so as to gain 20% on the whole transaction, then what is the gain percentage on the two articles?