Mrinalini and NEha travel to Cannaught Place along two straight roads with constant speeds. At the initial moment the positions of Mrinalni, Neha and Canaught Place form a right triangle. After Mrinalini travelled 30 km, the triangle between the points became equilateral. Find the distance between Mrinalini and Neha at the initial moment if at the time Mrinalini arrived at Connaught Place, Neha had to cover 66.66 km to reach Cannaught Place?
a)10(3)1/2 b) 30(5)1/2c) 12(3)1/2d)20(3)1/2e)None of these
Circles are drawn with four vertices as the centre and radius equal to the side of a square. If the square is formed by joining the mid points of another square of side 2root(6), find the common area to all the four circles.
Please solve this one: Arun Sharma book Block Geometry Pre-Assess Test Q.11 Pg.343In the figure given below, a circle is inscribed inside a square. In the gap between the circle and the square (at the corner) a rectangle measuring 20cm X 10cm is drawn such that the corner A of the rectangle is also a point on the circumference of the circle. What is the radius of the circle in cm?
A container contain mixture of 2 liquid A & B in the ratio of 7:5.When a litre of mixture is drawn off and the container is filled with B,the ratio of A & B becomes 7:9 .How many ltr of liquid A was contained by the container initially?
In the AMS library, there are 8 books by Stephen Covey and 1 book by Vinay Singh in shelf A. At the same time, there are 5 books by Stephen Covey in shelf B. One book is moved from shelf A to shelf B. A student picks up a book from shelf B. Find the probability that the book by Vinay Singh.
a 3 digit number mnp is a perfect square,and the number of factors it has is also a perfect square. It is also known that the digits m,n and p are distinct.If(m+n+p) is also a perfect square,what is the number of factors of the 6 digit number mnpmnp?
a.32
b.72
c.48
d.cannot be determined
p.s-Am getting 72 but the answer is given as d.cannot be determined.
3 men and 5 women together can finish a job in 3 days. Working on the samd job 3 women take 5 days more than the time required by 2 men. What is the ratio of efficiency of a man to a woman? A. 2:1, B. 3:2, C. 5:2, D. 4:1
An amount of Rs 12820 due 3 years hence is fully repaid in three annual instalments starting after 1 year. The first instalment is 1/2 of the second instalment and the second instalment is 2/3 of the third instalment. If the rate of interest is 10% per annum, find the first instalment.
In Sivkasi,each boy's quota of match sticks to fill into boxes is not more than 200 per session. If he reduces the number of sticks per box by 25 , he can fill 3 more boxes with the total number of sticks assigned to him. Which of the following is the possible number of sticks assigned to each boy?
A) 200 B) 150
C)125 D) 175
Couldn't understand the logic behind the solution explained in the book. PLEASE HELP.
three numbers are such that the second is as much lesser than the third as the first is lesser than the second . if the product of the two smaller numbers is 85 and the product of two larger numbers is 115 find the middle number .. option :-a]9 b]8 c]12 d]30 e]10 plz explain
Hi guys came across a sample question in arun sharma which ask us to find the number of numbers b/w 100-400 which are divisible by either 2,3,5 and 7. Could ny 1 pls explain me the meaning of "either" in the ques ? does it mean either 2 or 3 or 5 or 7, pls also reply with the correct answer. Thanks in advance.