১৩৪১১
Mr. X had Tk. 1000 in his savings account. Every month in the first week he needs money, so he withdraws Tk. 500, but by the end of the month, he deposits Tk. 750. After how many months, the original amount will grow three times?
উত্তর
8 months
১৩৪১২
Two small circular parks of diameter 16 meter and 12 meter are to be replaced by a bigger circular park. What would be the radius of this new park, if the new park has to occupy the same space as the two small parks?
উত্তর
10 meter
১৩৪১৩
A student obtained 60, 75 and 85 marks respectively in 3 monthly examinations in physics and 95 marks in in the final examination. The 3 monthly examinations are of equal weithtage whereas the final examination is weighted twice as much as monthly examination. what is his average mark in physics?
উত্তর
82
১৩৪১৪
At a stationary shop, it costs Tk. 185 for 4 gel-pens, 8ball-point pens and 1 marker pen and Tk. 315 for 7 gel-pens, 15 ball-point pens and 1 marker pen. What would be the cost of 1 gel-pen, 1 ball-point pen and 1 marker pen?
উত্তর
Tk. 55
১৩৪১৫
The average of 10 numbers is 40.2. Later it is found that two numbers have been wrongly added. The first one is 18 greater than the actual number and the second number added is 13 instead of 33. Find the correct average -
উত্তর
40.4
১৩৪১৬
In a certain population group, 57% of the people have characteristics X and 63% have characteristics Y. If every person in the group has at lest one of the of the two characteristics, then what percent of the people have both X and Y?
উত্তর
20%
১৩৪১৭
M is older than N but younger than O. If m, n and o are the ages of M, N and O respectively, then which of the following is true?
উত্তর
n<m<o
১৩৪১৮
What is the smallest number of apples that can be distributed equally (without cutting any apple) among 6,10,14 and 18 boys?
উত্তর
630
১৩৪১৯
A merchant has 1000 kg of sugar, part of which he sells at 8% and the remaining at 18% profit. He gains 14% on the whole. Find the quantity of sugar that he sold at 18% profit.
উত্তর
600kg
১৩৪২০
If the numerator of a fraction is increased by 2 and the denominator by 1 it becomes 1. Again, if the numerator decreased by 4 and the denominator by 2 it becomes 1/2. Find the fraction.
উত্তর
7/8