কোন একটি পণ্যের দাম প্রথমে ১৫% বাড়ানো হলো এবং এরপর ১৫% কমানো হলে দাম-
A. পরিবর্তন হয় না
B. ২.২৫% বাড়ে
C. ২.২৫% কমে
D. কোনটিই নয়
সঠিক উত্তরঃ
C.
২.২৫% কমে
Explanation:
Related Questions (Any University/Year)
- 9 numbers are written in ascending order, middle number is average of that nine numbers. Average of five larger numbers is 68 and also average of five smaller numbers is 44. What is the sum of all nine numbers?
- What is the ratio of the students playing football in Class XI to those in Class X ?
- If Ruby walks to work at a rate of 2 miles per hour, but she walks home by the same route at a rate of 3 miles per hour, what is Ruby's average walking rate in miles for the round trip?
- The sum of three digits of a number is 10, The middle digit is equal to the sum of other two, and the number will be increased by 99 if the first and third digits be interchanged. What is the original number?
- If the base of a triangle is increased by 20% and the height is decreased by 25%, then the area of the triangle is:
- ’ক’ এর ওজনের চেয়ে ‘খ’ এর ওজন ১১ কেজি কম। আবার ‘গ’ এর ওজনের চেয়ে ‘খ’ এর ওজন ৭ কেজি বেশি। এখন ‘ক’ এর ওজন যদি ৫৩ কেজি হয়, তাহলে ‘গ’ এর ওজন কত?
- The ratio of boys and girls in a school is 9:5.If the total number of students in the school is 1050.Then number of boys is.
- If a family was randomly picked from the families in the previous question, what is the probability (approximately) of that family having working mothers as member?
- The difference between two positive numbers is 16. If the smaller of those two numbers is 3/5th of the larger, what is the value of the smaller number?
- There are 50 students enrolled in Business studies .Of the enrolled students 90% took the final exam. Two-thirds of the students who took the final exam passed the final exam. How many students passed the final exam ?
- A man buys some pens and pencils. The pen costs Tk. 7 each and the pencil costs Tk. 3 each. If the man spends exactly Tk. 81 and buys the maximum number of pen possible under these conditions, what is the ratio of pens to pencils?
- Pavel was cycling at 30 km/h and was passed by Ratan who was cycling at 40km/h. If Ratan cycles for c minutes at his speed and then stops, how long in minutes, will it take for Pavel to reach him?
- A company pays a tax of 10% on its first tk 100,000 earnings and 15% in earnings in excess of tk 100,000. What will be the amount of tax, in taka, if its earning tk 275,000?
- A and B can do a job in 12 days, B and C can do the job in 18 days and A and C can do the job in 9 days. In how many days A alone can finish the work?
- Outside a square garden there is a path of 5 metres width around it, If the area of the path is 500 square metres, what is the area of the garden?
- In a party of 77 people, there are twice as many women as children and twice as many children as men. How many children were present?
- A piece of ribbon 4 yards long is used to make bows requiring 15 inches of ribbon for each. what is the maximum number of bows that can be made?
- যদি, \(\sqrt{\sqrt{\sqrt{3x}}}=\sqrt[4]{2x}\) তাহলে, x এর সবচেয়ে বড় সম্ভাব্য মান কোনটি?
- A 112 meter rope is cut into three pieces with each piece twice as long as the previous one. How long is the longest piece?
- A tap can fill a tank in 4 hours. After half the tank is filled, three taps that are more similar are opened. What is the total time taken to fill the tank completely?
- Hisham can now purchase 5 more apples with Tk. 75 because of reduction in price by 20%.Calculate the previous price of one dozen of apples.
- Alam can do a job in 3 hours. Bipu can do the same work in 20% lesser time but he charges 30% per hour more than Alam does. Alam works for 1 hour and the rest is completed by Bipu. If Alam receives 100 TK , how much did Bipu receive?
- If the 8% tax on a cell amounts to 96¢, what is the final price( tax included) of the item?
- The foot of a ladder is 2m away from a vertical wall. The height of the top of the ladder is 2.m less than the length of the ladder. What is the length of the ladder?
- If X⁴ = 81 and Y² = 49, then maximum possible value for Y-X is
