৫৭৫১
The radius of a circle is increased so that in circumference increased by 5%. The area of the circle will be increased by-
উত্তর
10.25%
৫৭৫২
A wire can be bent in the form of a circle of radius 56cm. If it is bent in the form of a square, then what will be its area?
উত্তর
7,744
৫৭৫৩
In a railway compartment 6 seats are vacant on a bench. In how many ways can 3 passengers sit on them?
উত্তর
120
৫৭৫৪
The distance from the point P to two vertices A and B of an equilateral triangle are ।PA।= 2 and ।PB।= 3. What is the greatest possible value of ।PC। = ?
উত্তর
5
৫৭৫৫
The average of 10 integers is 16. If the sum of 6 of them is 100. What is the average of other 4?
উত্তর
None of these
৫৭৫৬
If p and n are integers such that p > n > 0 and p2 - n2 = 12, which of the following value of p - n?
উত্তর
2
৫৭৫৭
Income tax is raised from 4% to 5% but the revenue is increased by 10% only. Find the decreased percentage in the amount taxed.
উত্তর
12
৫৭৫৮
Find the area of rhombus one side of which measures 20cm one diagonal 24cm.
উত্তর
384cm2
৫৭৬০
A pole 6 m high casts a shadow 2√3m long on the ground, then the Sun’s elevation is?
উত্তর
60°