১২৭০১
A rectangle is 14 cm long and 10 cm wide. If the length is reduced by x cm and its width is increased also by x cm so as to make a square, then its area increased by -
উত্তর
4cm 2
১২৭০২
Mr. Shobuj was both the 14th highest and the 14th lowest in a tennis tournament. How many participants were in the tournament?
উত্তর
27
১২৭০৩
In the coordinate plane, line m passes through the origin and has slope of 3. If points (6, y) and (x, 12) are on line m then y - x = ?
উত্তর
14
১২৭০৪
The average of several exam scores is 80. One make-up exam was given. Included with the other scores. The new average was 84. If the score on the make up exam was 92, how many total exams were given?
উত্তর
4
১২৭০৫
A delivery cart went from Candle ford to Lark Rise and back at an average speed of 2/3 miles per hour. If the distance from Candle ford to Lark Rise is 1 mile and the trip back took half as much time as the trip there, what was the average speed of the delivery cart on the way to Lark Rise?
উত্তর
1/2
১২৭০৬
If one of the the roots of the quadratic equation x2 + mx + 24 = 0 is 1.5, then what is the value of m?
উত্তর
-17.5
১২৭০৭
A solid cube of side 6 is first painted pink and then cut into smaller cubes of side 2. How many of the smaller cubes have Paint on exactly two sides.
উত্তর
12
১২৭০৮
A man spent 1/2 of his money and then lost 1/4 of the reminder. He was left with Tk. 3,600. How much did he start with?
উত্তর
9,600
১২৭০৯
A shopkeeper buys 100 mangoes at Tk. 12 each. He sells 60 mangoes at Tk. 17.40 each and x mangoes at Tk. 11.31 each. The shopkeeper makes a profit of at least 10%. Find the least possible value of x.
উত্তর
25
১২৭১০
Lamia owns a hairdressing salon. She borrows Tk. 2,500 from a bank to improvements to her beauty salon. She is charged 4.5% per year compound interest. She pays the money back after 3 years. Calculate the total amount Lamia must pay to the bank.
উত্তর
Tk. 2852.92