Instructions

For the following questions answer them individually

Question 11

The simple interest on a sum is 7/8 of the principal for 5 years. What is the rate (in percentage) of interest per annum?

Question 12

If A purchase 9 chairs for Rs 5 and sells all the chairs at the rate of 5 chairs for Rs 9, then what will be the profit percentage?

Question 13

The marked price of a pen is Rs 3000. The shopkeeper gives two successive discounts of 15% and a% to the customer. If the customer pays Rs 2142 for the pen, then what is the value (in percentage) of a?

Question 15

X and Y undertook to do a piece of work for Rs 5400. X alone could do this work in 18 days and Y alone could do this work in 24 days. With the assistance of Z they finished the work in 8 days. What is the share (in Rs) of Z ?

Question 16

A boat covers 12 km upstream in 4 hours and can cover the same distance downstream in 3 hours. What is the speed (in km/hr) of the boat in still water?

Instructions

The HR department of an MNC prepared a report. The pie chart from this report represents all the employees of the MNC and the languages that they speak. Study the diagram and answer the following questions.

Question 19

The measure of the central angle of the sector representing language A is ________ degrees.

Question 20

If the average monthly salary of the employees of this MNC is $5000 then what is the total of the salaries (in $ millions) paid to all the employees of this MNC?