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Total number of cards = 52Multiples of 3 in each set = 3Multiples of 3 in all the four sets = 12Remaining number of cards = 52 - 12 = 40(i) Number of face cards in each set = 3Probability that the card drawn is a face card (King, Jack And Queen) = 12/40 = 3/10(ii) Number of red cards = 20Number of even numbered red cards in 20 cards = 10Probability of an even numbered red card = 10 / 20 = 1/2.

volume of wooden pole = πr²h = 7*π*(20)² = 22*0.2*0.2= 0.88 m³

now , weight of pole = volume × density = 0.88×225 = 198 kg

1. We know from the formula that these isomers contain no rings or double bonds.

The isomers must be alcohols and ethers.

Let's start by drawing the alcohols.

Start with four carbons in a row and put anOHgroup in every possible position.

This gives us

1.CH3CH2CH2CH2OH, butan 1-ol

and

2.CH3CH2CH(OH)CH3, butan-2-ol

Now use a 3-carbon chain with aCH3on the middle carbon.

This gives

(CH3)2CHCH2OH, 2-methylpropan-1-ol

and

(CH3)3COH, 2-methylpropan-2-ol.

Now for the ethers.

Let's start with five atoms in a row.

This gives

CH3CH2CH2OCH3, 1-methoxypropane

and

CH3CH2OCH2CH3, ethoxyethane

Finally, the only choice for a branched-chain ether is

(CH3)2CHOCH3, 2-methoxpropane.

And there are your seven isomers ofC4H10O.

1.january2. June3.july ans. is 3 months.

tha

thanks

your most welcome.

Let the length of each edge of the cube beaunits.∴ Volume of cube =a^3cube unitsSince the cylinder is within the cube and it touches all the vertical faces of cube.∴ Radius of base of the cylinder and the cone= (a/2) unitsHeight of the cylinder and the cone =a unitsVolume of cylinder = πr^2h=π(a/2)^2x a = (22/7) x (a^2/4) x a= (11/14)a^3Volume of cone = (1/3)πr^2h= (1/3) xπ(a/2)^2x a = (22/21) x (a^2/4) x a= (11/42)a^3Consider, volume of cube : volume of cylinder : volume of cone = a^3: (11/14)a^3: (11/42)a^3= 1 : (11/14) : (11/42)= 42 : 33 : 11

Probability = possible outcomes / Total outcomes1) probability = 4/52 = 1/13

2) probability = 26/52 = 1/2

3) probability = 44/12 = 11/3

thq soo much

The Universal Declaration of Human Rights, which was adopted by the UN General Assembly on10 December 1948, was the result of the experience of the Second World War.

Assume that the length of all edges of the cube=x unitsFormula for volume of cube=x³ cube unitDue an occurrence that the cylinder is within the cube &it touches all the vertices faces of the cube.Therefore radius of the base of the cylinder & cone & height of cylinder of a cone=xVolume of the cylinder=π×{x/2}²×x=22/7×x³/411/14x³ cube unitVolume of cone should be=1/3π{x/2)²×x=11/42 cubic unitRequired ratio=volume of cube:volume of cylinder:volume of cone=x³:11/14x³:11/42x³=42:33:11

1 king can be selected in4C14C1ways

4 other cards can be selected in48C448C4ways

∴∴No of card combination out of a 52 cards each combination having exactly one king.

⇒4C1×48C4⇒4C1×48C4

Hence (A) is the correct answer.

A is correct answer of this question

Given that,length = 5 mbreadth = 4 mheight = 3 marea of wall = 2h (L+ b) = 2 * 3 (4 +5 ) = 6*9 = 54 sq mLike my answer if you find it useful!

Area of four walls will be2h(length+ width)2*3(4+5)9*6= 54 m^2

SI = P*R*T/100P = a, R = 10%, T = b/12

SI = a*10/100*b/12 = ab/120

We know that the lengths of the tangents from an external point to a circle are equal.

AP = PB = 3 cm and CD = BC

Since BC = PC – PB = 8 – 3 = 5 cm, CD = 5 cm

Hence, the length of CD is 5 cm.

circumference = 44 cm

or 2 * pie * r = 44

Lateral surface area of cylinder = 2 * pie * r * h

= 44 * 10 [since 2 * pie * r = 44]

= 440 cm²

Add = (2x +3y) + (5x - 2y) = 7x + ySubtract = (7x+y) - (2x-2y) = 5x + 3y ans

The next the natural numbers after 100199 are 100200,100201,100202.

A die has 6 faces marked as 1, 2, 3, 4, 5, 6. When we throw a die, then total number of outcomes = 6 {1, 2, 3, 4, 5, 6}

But when we throw two dice simultaneously , than total number of outcomes = 6 × 6 = 36

Total possible outcomes on throwing two dice are:{(1,1),(1,2),(1,3),(1,4),(1,5),(1,6), (2,1),(2,2),(2,3),(2,4),(2,5),(2,6), (3,1),(3,2),(3,3),(3,4),(3,5),(3,6), (4,1),(4,2),(4,3),(4,4),(4,5),(4,6), (5,1),(5,2),(5,3),(5,4),(5,5),(5,6), (6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}

Number of all possible outcomes = 36

1.5/0.4=h/87.6so h=(87.6×1.5)/0.4=328.5mts

i) distance covered by elevator in the mine is 8*40= 320metres , but its down the ground so -320m

ii) speed of the lift is = 15/3 = 5mts/min

radius = 14/2 = 7 cm

Perimeter = semicircle part + diameter

= pi × r + 14

= 22/7 × 7 + 14

= 22 + 14

= 36 meter

B)

radius = 14/2 = 2cmperimeter of the semicircle + diameter= 2πr/2 + 14= πr + 14= 22/7*7 + 14= 22+14= 36 cm

perimeter of rectangle= 28mtrlet breadth =xperimeter= 2(L+b)=28=2x+2L28/2=x+2L14/2=x+L7=x+

perimeter of a rectangle = 2 (length + breadth)area of a rectangle = length * breadth according to the perimeter 2 (length +breadth) =28 length +breadth =14

area of a rectangle = length * breadth

possibilities are 10 plus 4as 10 multiplied by 4 equals to four

length equals =10

just do prime factorisation.

Three natural numbers after 10999 are: 110001100111002

110000

Three natural numbers after 10999 are 11000,11001,11002.

the next three natural numbers are 11000,11001,11002