SSC GD 17th Jan 2023 Shift 2

If the ratio of the radius and height of a cylinder is 3 : 2 and radius is 21 cm, then the curved surface area (in $$cm^{2}$$) is (Use $$\pi = \frac{22}{7}$$)

If $$42 \div 2 + m \times 3 - 22 \div 11 + 3 = 28$$, then the value of m is:

In an alloy of 60 grams, the ratio of gold and copper is 2 : 1. How much more of copper should be added to make the ratio 1 : 2?

40 litres of a mixture has 10% alcohol and the rest water. If 4 litres of water be mixed in it, the percentage of alcohol in the new mixture will be:

In what ratio must a grocer mix two varieties of tea worth Rs.120 per kg and Rs.130 per kg,
so that by selling the mixture at Rs.136.40 per kg, he may gain 10%?

The radius of a cylindrical vessel is increased by 50% and the height is decreased by 50%.What is the change in its volume?

If the surface area of a sphere is 30,184 $$cm^{2}$$ , then find its volume (Use $$\pi = \frac{22}{7}$$)

14 men can build a 55 m long wall in 5 days. What length of a similar wall can be built by 21 men in 4 days?

A shopkeeper sells shirts at a price of ₹ 800 per shirt. He allows a discount of 10% to all
customers making full cash payment, and to customers buying 10 shirts at a time, he gives two shirts free. If a customer is willing to take both the discounts, what net effective discount can he/she avail?( the shopkeeper charges for 10 shirts but gives two additional shirts in the same amount) this is only for clarity and not a part of stem . Stem language is correct

A and B together do a piece of work in 12 days, B and C in 15 days, and C and A in 20 days.
In how many days can they finish the work if all of them work together?