Explanation

Step - 1: Let the side of the square be a

area (S1) = a^2

length of the diagonal is √(a^2+a^2)= a√(2)

Step - 2: Draw a square on its diagonal where the length of each side is a √(2)

Formula 

Hence S1:S2= (C) 1:2

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ND10-12-2022

Explanation

Zakat is calculated as 2.5% percent on savings

80000 x 2.5%

80,000x25.5x100

2000

***

ND29-11-2022

Explanation

Divide 105 by 7 =15

in 2 rows 15+15=30

Explanation

Explanation

The cost price of 42 articles= selling price of 28 articles

let the cost price of each article = Rs X

42X= selling price of 28 articles

the selling price of each article= is 42X/28=1.5X

profit percentage= (selling price-cost price)/cost price*100

=(1,5X-X)/X*100=50

profit percentage=50%

***

Explanation

First-year get 10% 100000/100*10 = 10000

100000-10000 =90000

2nd Year get 10% 90000/100*10 = 9000

9000-90000 = 81000

ND12_8_2023

Explanation

150 40/100*150= 60

Explanation

SH31-8-2023

Explanation

• The equation to solve the problem is displayed below where x is 0.0425 as a percentage.
• 0.0425/1  = 100/ x
• We solve the equation for x above by first multiplying each side by one and then multiplying each side by one hundred. Thus, the answer to 0.0425 as a percentage is:
• 4.25%
  

Explanation

5 percent × 11000

= (5 ÷ 100) × 11000

= (5 × 11000) ÷ 100

= 55000 ÷ 100

= 550

Now we have: 5% of 11000 = 550