Explanation

Let side of the square = a

Area = a 2

 ∴ new side = 3a

Hence, new area = (3a)

2 =9a 2 Precentage increase in area = 

a 2 9a 2−a 2 ×100=800%

Explanation

Let numbers are x and y

⇒x−y=5

xy=336

Now using identity

(x+y)

2

 =(x−y)

2

 +4xy

=25+4(336)

=25+1344

=1369

⇒x+y=37

Explanation

Let C = x

Then:

• B = 2x (B is twice as old as C)
• A = 2x + 2 (A is 2 years older than B)

Total age = 27

(2x+2)+2x+x=27
5x+2=27
5x=25
$$x=5$$

$$Last\; updated\; 19-07-2026\; by\; NA$$

Explanation

Let the number be x Then, x+17=60x⇒x2+17x−60=0⇒(x+20)(x−3)=0⇒x=3

Explanation

144/8 = 18 people.

Thus you would need twelve additional people.

Explanation

The World Food Programme is the food-assistance branch of the United Nations. It is the world's largest humanitarian organization focused on hunger and food security, and the largest provider of school meals. Founded in 1961, it is headquartered in Rome and has offices in 80 countries. 

Explanation

Total number of votes = 7500

Given that 20% of Percentage votes were invalid

 => Valid votes = 80%

 Total valid votes = 7500*(80/100)

1st candidate got 55% of the total valid votes.

Hence the 2nd candidate should have got 45% of the total valid votes

=> Valid votes that 2nd candidate got = total valid votes x (45/100)

7500*(80/100)*(45/100) = 2700

Explanation

By Using formula 

2n+1=23

⇒    n=11

Explanation

Galileo Galilei was an Italian astronomer, physicist and engineer.

Explanation

Let third number is x. Then first no.20%ofx=20x100 Second number=50%ofx=50x100 Percent of first no of second no,=20x10050x100×100=2×10020= 40%