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votes
0
answers
The first and the last term of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?
asked
Jan 8, 2018
in
Class 10
by
kratos
class-10
arithmetic progression
+1
vote
0
answers
u200b Obtain the amount of \(_{27}^{60}Co\) necessary to provide a radioactive source of 8.0 mCi strength. u200b
asked
Jan 8, 2018
in
Class 12
by
kratos
class-12
nuclei
+1
vote
0
answers
A bag contains 6 red, 8 ***** and 4 white *****. A ball is drawn at random. What is the probability that ball drawn is not *****?
asked
Jan 8, 2018
in
Class 10
by
kratos
class-8
class-10
probability
+1
vote
0
answers
A and B can do a piece of work in 20 days and 12 days respectively. A started the work alone and then after 4 days
asked
Jan 8, 2018
by
kratos
class-8
time and work
+3
votes
0
answers
The velocity of car is 18 ms^-1 . Express this velocity in kmh^-1
asked
Jan 8, 2018
in
Class 9
by
kratos
motion
cbse
class-6
class-9
icse
idea of speed
distance
time
+3
votes
0
answers
Find the ratio of the total surface area and lateral surface area of a cube.
asked
Jan 8, 2018
in
Class 9
by
kratos
class-9
surface areas and volumes of cuboid and cube
+2
votes
0
answers
A person observed the angle of elevation of the top of a tower as 30°. He walked 50 m
asked
Jan 8, 2018
in
Class 10
by
kratos
heights and distances
applications of trigonometry
cbse
trigonometry
class-10
+3
votes
0
answers
What is the radian measure of – 37°30’?
asked
Jan 8, 2018
in
Class 11
by
kratos
class-11
trigonometric functions
+1
vote
0
answers
Ravish sold his motorcycle to Vineet at a loss of 28%. Vineet spent Rs 1680 on its repairs and sold the motor cycle to Rahul for Rs 35910,
asked
Jan 8, 2018
by
kratos
loss
value added tax
class-8
profit
discount
profit and loss
value added tax (vat)
+3
votes
0
answers
Evaluate each of the following: sin^-1(sin 2)
asked
Jan 8, 2018
in
Class 12
by
kratos
class-12
inverse trigonometric functions
+2
votes
0
answers
THERMODYNAMIC
asked
Jan 8, 2018
in
Class 11
by
kratos
thermodynamic
thermodynamics
heat and thermodynamics
class-11
+3
votes
0
answers
(i) What is limiting reactant?
asked
Jan 8, 2018
in
Chemistry
by
kratos
some basic concepts of chemistry
class-11
jee
jee mains
+3
votes
0
answers
A circular plate of metal is heated so that its radius increase at the rate of 0.1 mm/min.
asked
Jan 8, 2018
in
Class 12
by
kratos
class-12
application of derivative
+3
votes
0
answers
Evaluate the following integrals : ∫ x cos^3 x^2 sinx^2 dx
asked
Jan 8, 2018
in
Class 12
by
kratos
indefinite integral
class-12
+1
vote
0
answers
An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm.
asked
Jan 8, 2018
in
Class 10
by
kratos
light – reflection and refraction
refraction of light
class-10
+1
vote
0
answers
(I) 0.30 g of a substance gives 0.88 g of carbon dioxide and 0.54 g of water. Calculate the percentage of carbon and hydrogen in it
asked
Jan 8, 2018
in
Chemistry
by
kratos
organic chemistry
some basic concepts of chemistry
basic concepts of chemistry
class-11
estimation of elements
detection
class-10
chemical calculations
real numbers
+2
votes
0
answers
If one zero of a quadratic polynomial (kx^2 + 3x + k) is 2, then the value of k is
asked
Jan 8, 2018
in
Class 10
by
kratos
class-10
polynomials
quadratic equations
+3
votes
0
answers
Given that √3 is an irrational number, show that (5 +2√3) is an irrational number.
asked
Jan 8, 2018
in
Class 10
by
kratos
class-10
real numbers
cbse
+3
votes
0
answers
An object travels 16 m in 4 * and then another 16 m in 2 *. What is the average speed of the object?
asked
Jan 8, 2018
in
Class 9
by
kratos
motion
class-9
+3
votes
0
answers
Find the moment of inertia of a disc about a tangent to the disc perpendicular to its plane.
asked
Jan 8, 2018
in
Class 12
by
kratos
system of particles
rotational motion
neet
motion of system of particles
class-11
aiims
rigid bodies
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Recent questions without answers