10 person consumed 20 kg in= 15 days

1 person consumed 20 kg in = 10 x 15=150 days

15 person will consume in days= 150/15= 10 days

8 men can do work = 20 days 

1 man can do this work = 8*20

10 men can do that work = [8*20]/10

                                              =16 days 

Let the triangle be ΔABC

The sum of angles in triangle is 180∘

 45∘+60∘+∠C=180∘∠C=180−45−60∠C=75∘

Given the base of a right angled triangle is 8 m and its hypotenuse is 10 m

Then height =(10)2−(8)2​=100−64​=36​=6 cm

Then area of triangle =21​×8×6=24 sq cm

By Using formula 

2n+1=23

⇒    n=11

Let the total piece of land that he has be x hectares,

According to question, x/3 hectare land is used for strawberries, x/4 hectare for chesses, 3x/8 hectare for vegetables and 9 hectares for oats,

total land area= x

Therefore,

x = x/3 + x/4 + 3x/8 + 9,

taking x common,

1 = 1/3 + 1/4 + 3/8 + 9/x,

1 – (1/3 + 1/4 + 3/8) = 9/x,

1 – ((8 + 6 + 9)/24) = 9/x,

1 – (23/24) = 9/x,

1/24 = 9/x or x = 216 hectares

35 men completed the remaining job in 12 days.
Now the same job has to be done by 30 men.
We know that, M1​D1​=M2​D2​
Required time =3035×12​=14 days
Delayed time =(14−13)=1 day

Let total Sum = X

1st friend received = X * 1/6

2nd friend received = X*1/4

3rd friend received  = X*1/2

4rth friend received = 5

So:

X/6 + X/4 + X/2 + 5 = X

(2X+3X+6X) – 12X / 12 = -5

-X/12 = -5

X = 60

Average= sum of numbers/total numbers 

Average = [70%+77%+78%+82%+85%]/5

Average-= 392/5

Average=78%

In grammar, a conjunction is a part of speech that connects words, phrases, or clauses that are called the conjuncts of the conjunctions.

Before used as Conjunction