একটি বই ৬৫ টাকায় বিক্রি করলে বিক্রেতা ৩০% লাভ করে। ১০% লাভে বিক্রি করতে চাইলে নতুন বিক্রয় মূল্য কত হবে?

2.

The difference between a simple interest and annually compounded interest of a principal of 2 years at 8% interest reate is Tk. 12.80. What is the principal amount?

3.

Jaya can make 40 pancakes in a minute. Sally can make pancakes at half of Jaya's rate. What time will it need (in minute) to make 150 cakes, if Sally's have already made a start of 30 pancakes alone?

4.

একটি কাজ করতে ২০০ জন লোকের ২৫ দিন লাগে। কাজটি ২০ দিনে করতে চাইলে অতিরিক্ত কতজন লোক নিয়োগ করতে হবে।

5.

x-y=3 এবং xy=0 হলে, $x^{3} - y^{3} = 0$ কত?

6.

গতকাল একটি শেয়ারের মূল্য ২০% কমেছিল, কিন্তু আজ ঐ শেয়ারের মূল্য ২০% বেড়েছে। দুদিনে এই শেয়ারের মূল্য শতকরা কত বেড়েছে বা কমেছে?

7.

উৎপাদকে বিশ্লেষণ করুন: $a y + a - y^{2} - 2 y - 1$

8.

x+y=2, xy=3 হলে, $x^{3} + y^{3} + 4 {(x - y)}^{2}$ এর মান কত?

9.

A depositor deposited Tk. 4,000 at x% simple interest and Tk. 5,000 at y % simple interest. He received annual interest of Tk. 320 on his deposited amounts at the year end. If he could deposit Tk. 5,000 at x% simple interest and Tk. 4,000 at y% simple interest, he would receive annual interest of Tk. 310. Find the value of x and y.

10.

Working together pipe P, R and T can fill a trunk in 5 hours. Working together P and R can fill it in 7 hours. Find in how many hours T can fill it?

11.

A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of same colour?

12.

There was a shipment of cars. Out of which half was black in colour. Remaining cars were equally blue, white and red. 70% of black cars, 80% of blue cars, 30% of white cars, 40% of red cars were sold. What percentage of total cars were sold?

13.

A train passes a man in 3 second, and another train from opposite direction pass the man 4 second, both train same length. How long time need to pass the train each other?

14.

A man works for certain hours. If his hourly payment increase by 20%, what percent of working hours he may reduce so that total income remain unchanged?

15.

There were some books of novel and non fiction. Board discuss 3 times for any novel and 5 times for any non fiction. During a year they discuss total 52 times. If there were 12 books. How many of them were novel?

16.

In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:

17.

A alone can reap a certain field in 15 days and B in 12 days. If A begins alone and after a certain interval B joins him, the field is reaped in 7.5 days. How long did A and B work together.

18.

a, b, c, d and e are five consecutive numbers in increasing order of size. Deleting one of the five numbers from the set decreased the sum of the remaining numbers in the set by 20% of the sum of all five numbers. Which one of numbers was deleted from a, b, c, d and e?

19.

A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes. Both the taps are kept open for 10 minutes and then the first tap is shut off. After this, the tank will be completely filled in what time?

20.

একটি ঘরের দৈর্ঘ্য প্রস্থের ৩ গুণ। প্রতি বর্গমিটার ৭.৫০ টাকা দরে ঘরটির মেঝে কার্পেট দিয়ে ঢাকতে মোট ১,১০২.৫০ টাকা হয় । ঘরটির দৈর্ঘ্য ও প্রস্থ নির্ণয় করুন।

গণিত

একটি বই ৬৫ টাকায় বিক্রি করলে বিক্রেতা ৩০% লাভ করে। ১০% লাভে বিক্রি করতে চাইলে নতুন বিক্রয় মূল্য কত হবে?

The difference between a simple interest and annually compounded interest of a principal of 2 years at 8% interest reate is Tk. 12.80. What is the principal amount?

Jaya can make 40 pancakes in a minute. Sally can make pancakes at half of Jaya's rate. What time will it need (in minute) to make 150 cakes, if Sally's have already made a start of 30 pancakes alone?

একটি কাজ করতে ২০০ জন লোকের ২৫ দিন লাগে। কাজটি ২০ দিনে করতে চাইলে অতিরিক্ত কতজন লোক নিয়োগ করতে হবে।

Working together pipe P, R and T can fill a trunk in 5 hours. Working together P and R can fill it in 7 hours. Find in how many hours T can fill it?

A box contains 5 green, 4 yellow and 3 white balls. Three balls are drawn at random. What is the probability that they are not of same colour?

There was a shipment of cars. Out of which half was black in colour. Remaining cars were equally blue, white and red. 70% of black cars, 80% of blue cars, 30% of white cars, 40% of red cars were sold. What percentage of total cars were sold?

A train passes a man in 3 second, and another train from opposite direction pass the man 4 second, both train same length. How long time need to pass the train each other?

A man works for certain hours. If his hourly payment increase by 20%, what percent of working hours he may reduce so that total income remain unchanged?

There were some books of novel and non fiction. Board discuss 3 times for any novel and 5 times for any non fiction. During a year they discuss total 52 times. If there were 12 books. How many of them were novel?

In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:

A alone can reap a certain field in 15 days and B in 12 days. If A begins alone and after a certain interval B joins him, the field is reaped in 7.5 days. How long did A and B work together.

a, b, c, d and e are five consecutive numbers in increasing order of size. Deleting one of the five numbers from the set decreased the sum of the remaining numbers in the set by 20% of the sum of all five numbers. Which one of numbers was deleted from a, b, c, d and e?

A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes. Both the taps are kept open for 10 minutes and then the first tap is shut off. After this, the tank will be completely filled in what time?