SSC GD 30th Jan 2023 Shift 4

The average marks obtained in a subject by 60 students in a class is 82. The average marks of boys and girls in that subject are 75 and 85 respectively. The number of boys in the class is:

A shopkeeper marks his goods 12 percent above cost price, but allows 12 percent discount for cash. His net gain or loss percent is:

Two numbers are in the ratio of 2 : 3. Their HCF and LCM are 21 and 126, respectively.
What is the difference of these two numbers?

Laxman marks his goods at 60% above the cost price and allows a discount of 20%.
What is his gain/loss percentage?

A and B undertake to do a piece of work for Rs. 330. A can do it in 11 days and B can do it in 22 days. With the help of C, they finish it in 6 days. How much should C be paid for his work?

A and B together can do a piece of work in 12 days, B and C together in 15 days, C and A together in 20 days. If A, B and C work together, then how many days will be required to do the same work?

Mohan goes to office from home at a speed of 20 km/h and returns to home from office at a certain speed. If the average speed is 24 km/h, then what is the speed while returning?

Two objects were sold for ₹9,900 each. One object was sold at a loss of 10% and the other object was sold at a gain of 10%. The net gain or loss in the whole transaction is:

Find the fourth proportional to 7x - 1, 9x + 5 and 8x + 1, if x = 3.

Anupam started a business with an initial investment of ₹2,00,000. In the first year, he incurred a loss of 4%. However, during the second year, he earned a profit of 10%, and in the third year he earned a profit of 15%. Calculate his net profit for the entire period of three years.