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Naresh Khyalia
Subject: Maths
, asked on 23/4/18
Give solution of 12
^{th}
question
12. The ratio of the number of boys to the number of girls in a class is 1 : 2. It is known that the probability of a girl and a boy getting a first division are 0.25 and 0.28 respectively. Find the probability that a student chosen at random will get first division.
Answer
1
Ananya Paliwal
Subject: Maths
, asked on 1/10/19
I WANT TO KNOW IF THE FOLLOWING SOLUTION IS CORRECT, IF NOT GIVE REASONS.
Answer
1
Ananya Paliwal
Subject: Maths
, asked on 19/1/20
Chords BA and DC of a circle intersect externally at P. If AB = 7 cm, CD = 6 cm and PC = 1 cm, then the length of PB is ______.
Answer
1
Nabhitha Balachandar
Subject: Maths
, asked on 27/5/20
Pls solve 26th question
Answer
1
Dherya
Subject: Maths
, asked on 24/9/12
can we prove 4+5+5=450 with use of any line except | line.
Answer
0
Amanpreet Singh
Subject: Maths
, asked on 12/8/15
Divide the number 4 into two positive number such that the sum of the square of one and the cube of other is minimum
Answer
1
Niranjan
Subject: Maths
, asked on 12/9/16
The perimeter of a triangle is 8 cm. If one of the sides is 3 cm , what are the other two sides for the area of the triangle to be maximum
Answer
1
Ankita Verma
Subject: Maths
, asked on 25/9/17
Q.13. A ball is thrown vertically upwards in air. If the air resistance cannot be neglected (assume it to be
directly proportional to velocity), then the acceleration of the ball at the highest point will be:
(1) 0
(2) g
(3) > g
(4) < g
Answer
2
Ananya Paliwal
Subject: Maths
, asked on 2/2/20
Integrate 2^ 3x + 4 in steps,
Answer
1
Amanpreet Singh
Subject: Maths
, asked on 13/8/15
A straight line AB of length 8cm is divided into two parts AP and PB by point P. Find the position of P if AP^2 + BP^2 is minimum
Answer
1
Arusha Agarwal
Subject: Maths
, asked on 26/7/16
Differentiate tan
^{-1}
(5x+1/ 3-x-6x
^{2}
) w.r.t x
Answer
1
Ananya Paliwal
Subject: Maths
, asked on 21/6/19
Find the value of the following.
Answer
1
Rahul
Subject: Maths
, asked on 24/1/16
An unbiased coin is tossed 'n' times . Let the random variable X denote the number of times the head occurs . if P(X=1) ,P(X=2) and P(X=3) are in A.P , find the value of n.
Answer
1
Ankita Verma
Subject: Maths
, asked on 12/9/17
Solve this:
15. A particle moves through the origin of an xy-cordinate system at t=0 with initial velocity u=4i-5j m/s. The particle moves in the xy plane with an acceleration a=2i m/s
^{2}
. Speed of the particle at t=4 second is:
(1) 12 m/s (2)
$8\sqrt{2}$
m/s (3) 5 m/s (4) 13 m/s
Answer
1
Naresh Khyalia
Subject: Maths
, asked on 23/4/18
Give solution of 9
^{th}
question
9. In a bolt factory, machines A, B and C manufacture respectively 25%, 35% and 40 % of the total bolts. Of their output 5, 4 and 2 percent are respectively defective bolts. A bolt is drawn at random from the product. What is the probability that the bolt drawn is defective?
Answer
1
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^{th}question12. The ratio of the number of boys to the number of girls in a class is 1 : 2. It is known that the probability of a girl and a boy getting a first division are 0.25 and 0.28 respectively. Find the probability that a student chosen at random will get first division.

can we prove 4+5+5=450 with use of any line except | line.

directly proportional to velocity), then the acceleration of the ball at the highest point will be:

(1) 0

(2) g

(3) > g

(4) < g

^{-1}(5x+1/ 3-x-6x^{2}) w.r.t x^{2}. Speed of the particle at t=4 second is:(1) 12 m/s (2) $8\sqrt{2}$ m/s (3) 5 m/s (4) 13 m/s

^{th}question9. In a bolt factory, machines A, B and C manufacture respectively 25%, 35% and 40 % of the total bolts. Of their output 5, 4 and 2 percent are respectively defective bolts. A bolt is drawn at random from the product. What is the probability that the bolt drawn is defective?