Question

Question 17: Shubhi draws a table to calculate the purity of different types of gold, choose the

correct values of x and y:

Carat Parts of gold Purity in %

24 k 24/24 99.9%

22k 22/24 X

18 k y/24 75

a) x= 99.9 %and y = 20

b) x= 95% and y = 20

c) x = 91.7% and y=18

d) x= 86% and y= 18

Question 18: The cost of 5 gm of gold earring was Rs.22,000/-. The shopkeeper charged making

charges @ Rs 1000 per gm of gold. Also, a GST of 18% was charged. What is the total amount

that Shubhi has to pay?

a) Rs.27,000

b) Rs 31,860

c) Rs 29,000

d) Rs.34,220

Question 19: The shopkeeper apprised Shubhi about the special schemes of 5 % discount available

if she pays through card. If Shubhi pays by card then what is the amount that she will be charged?​

Answer 1

Answer:

17 - (c) x=91.7% and y =18

Answer 2

Answer:

Question 17 option (c) x=91.7% and y=18

Question 18 Option (b) ₹31,860

Step-by-step explanation:

Question 17

22/24 = 91.6%

y/24= 75%= 75%×24= 18

question 18

cost of 5gm gold= ₹22,000

making charges =₹5000(1000×5)

GST @ 18% = ₹4,860

Total amount =₹ 31,860