Question

A shopkeeper sells pizzas by the slices charging Rs. 50 per slice. He has two types of pizzas one round with

30 cm diameter, divided into 10 pieces. Another pizza square in shape with side 30 cm divided in to 12

pieces.

Question 20

Anjana bought the slice of round pizza and Sanjana opted for square slice. Who got a better deal? And by

what quantity?

a) Sanjana, approximately 4 cm2

b) Anjana, approximately 4 cm2

c) Sanjana, approximately 5 cm2

d) Anjana, approximately 5 cm2​

Answer 1

Answer:

(i)Selling price=120% of 4000

=120*4000/100

=₹4800

(ii)CGST=2.5*4800/100

=₹120

(iii)SGST=2.5*4800/100

=₹120

(iv)Total amount=4800+120+120

=₹5,080

(c) Sanjana approximately 5cm^2

Answer 2

Answer:

Area of round pizza =πr^2 (Value of π=22/7 )

= 22/7 x (15)^2 ( As we know that radius =1/2 of diameter)

= 3.14 x 225 = 706.5

Area of Anjana’s pizza = 706.5 / 10 = 70.65

Area of square pizza = side x side

= 30 x 30

= 900

Area of Sanjana’s pizza = 900 / 12 = 75

Hence, Sanjana got a better deal = 75 - 70.65 = 4.35 (approximately 5 cm^2)