A cricketer has a certain average for 9 innings. In the 10th innings he scores 100 runs, thus increasing his average by 8 runs. His new average is :
Masud has twice as much money as Selim has and Selim has 50% more money than what Bashir has. If the average money with them is Tk. 110, then Masud has :
A man spends 75% of his income. his income is increased by 20% and he increased his expenditure by 10%. His savings are increased by :
If a commission of 10% is given on the marked price of a book, the publisher gains 20%. If the commission is increased to 15% the gain is :
A man donated 5% of his income to a charitable organization and deposited 20% of the remainder in a bank. if he now has Tk. 1919 left, then his income is :
An ambulance travels 10 miles at a speed of 50 miles per hour. how fast must the ambulance travel on the return trip if the round trip travel time is 20 minutes?
The sum of principal and simple interest of a certain amount of money would be Tk. 460 after three years from now and Tk. 500 after five years from now. What is the related interest rate?
Humayra borrowed Tk. 240, free of interest, to pay for her new hair band. If she pays back 20% of the amount each month and has already paid back Tk. 120. how many months have passed since she took the loan?
The owner of Aarong starts to calculate the percentage of customers who purchase Tagas. if 40% of the total customers who visit the store actually purchase goods and 15% of them purchase tagas, then what percentage of Aarong's customers are Taga buyers?
Of the 120 households in an area, 55 have cars, 35 have motor bikes, and 20 have both cars and motor bikes. How many of the households in the area have neither cares nor motor bikes?
the average age of 12 children is 20 years. If the age of one more child is added, the average decreased by 1. What is the age of child added later?
The length of a rectangle is 3 times of its width. If the width of the rectangle is 5 inches, what is the rectangle's area, in square inches?
For all x>2, (2x২+2x-12)/(x-2)simplifies to :
The average of 50 numbers is 38. If two numbers namely 45 and 55 are discarded, the average of the remaining number is :
The price of desktop computer is discounted by 20%, and reduced price is then discounted by 20%. The series of successive discount is equivalent to a single discount of :