If there is a reduction in the number of workers in a factory in the ratio 65 : 17 and an increment in their wages in the ratio 34 : 125, then the ratio by which the total wages of the workers should be decreased is-

A team played 40 games in a season and won 24 of them. What percent of games played did the team win? 

A Navy captain going away from a lighthouse at the speed of 4[(73) -1] m/s. He observes that it takes him 1 minute to change the angle of elevation of the top of the lighthouse from 60 ° to 45 °. What is the height (in meters) of the lighthouse? 

The LCM of two consecutive even numbers is 144, find the numbers?

Find the average of all prime numbers from 1 to 20?

Find the value of ∠x in the given figure.

If in a sale, the discount given on a saree is equal to one-fourth of the marked price and the loss due to this discount is 15%, then the ratio of the cost price to the selling price is-

Direction (94-98): Study the following table to answer the given questions.
         Centre and Post-wise Numbered of candidate

What is the difference between total number of Officers and Clerks?