Price of HP laptops = 21000

Total laptops sold out in March month = 13

Total income = 13×21000 = 273000 = 2.73

Number of HCL laptops in January = 42

Number of HCL laptops in March = 40

Number of Lenova laptops in January = 30

Number of Lenova laptops in March = 38

Total sale of HCL and Lenova laptops in the month of January and March = 42 + 40 + 30 + 38 = 150

Number of HP laptops in February = 26

Number of HP laptops in April = 16

Number of Acer laptops in February = 25

Number of Acer laptops in April = 23

Total sale of HCL and Lenova laptops in the month of January and March = 26 + 16 + 25 + 23 = 90

HP and Acer in the month of February and April = 90

Ratio = 150 : 90

= 5 :3

Total income of Acer laptops in March = 4,75,200

Total laptops sold in March month = 36

Selling price of each laptop = 4,75,200÷ 36 = 13200

Marked price = 110% of cost price

110% → 13200

100 % → 12000

In March month an Acer laptop cost price = 12000

Number of HCL laptops sold in January = 42

Number of HCL laptops sold in February = 38

Total = 80

125% of 80 = 100

Sale of HCL laptops in May = 100

Area of parallelogram = Base × Height

Base = 16

Height = 12

Area of parallelogram = 16 × 12 = 192 cm²

Longest chord of a circle is it’s diameter.

PR is the diameter of the circle and Q is a point on the circle.

So ∆PQR = 90(Angle in a semicircle is a right angle)

So, PR² = PQ² + QR²

100 = 64 + QR²

QR = 6 cm

Sum of exterior angles of a regular polygon = 360°

Number of sides = Sum/Each angle

= 360/18

= 20

¼ = 0.25

7/12 is slightly greater than 0.5

66/133 is slightly less than 0.5

6/8 = 0.75

608 + 128 = 0.5x

0.5x = 736

X = 1472

4¹⁰×9¹⁰×5=x×2¹⁰×9¹⁰

X= 2¹⁰×5

X=1024×5

=5120