SSC GD 24th Nov 2021 Shift-3

A machine X can produce 1000 bolts in 4 hours and another machine Y can produce 1000 bolts in 12 hours. In how many hours can machines X and Y, working together at their respective constant rates, produce 1000 bolts?

In a company, there are 75% skilled workers and the remaining are unskilled. 84% of the skilled workers and 28% of the unskilled workers are permanent. If the number of temporary workers is 150, then the total number of workers in the company is:

Rumi earns 40% more wages than those earned by Erica. Charles earns 60% more wages than those earned by Erica. What percentage are the wages earned by Charles more than those earned by Rumi (correct to two decimal places)?

A metallic cone of radius 16 cm and height 36 cm is melted and made into spheres of radius 4 cm each. How many spheres are there?

Arun invested ₹7,000 at simple interest for two years at 10% per annum. Bharath invested a certain sum at simple interest for 5 years at 8% per annum. If the amount received by Arnn is equal to the amount received by Bharath, then the smn invested by Bharath is:

A sum of money at simple interest amounts to ₹650 in 3 years and to ₹754 in 4 years. The sum is:

The present average age of A, Band C is 60 years and that of B and C is 50 years. What is A's present age?

The difference between the simple interest received from two different sources on ₹1,625 for 5 years is ₹32.50. Find the difference between their rates of interest.

An article is sold at ₹3,520 at a loss of 12%. At what price should it be sold to earn a profit of 18%?

When walking at $$\frac{6}{7}$$ of his usual speed, a man is 10 minutes late. What is the usual time taken by him to cover that distance?