Question

kantabai bought 1.5 kg sugar from a shop. she paid rs. 50 as return fare for rickshaw. total expense was rs. 700. then she realised that by ordering online the goods can be bought with free home delivery at the same price. do next month she placed the order online for 2kg tea and 7kg sugar. she paid rs. 880 for that. find the rate of sugar and tea per kg.

Answer 1

866 am I right..........

Answer 2

Answer :

• The price of Tea per kg is Rs. 300
• Price of the Sugar per kg is Rs. 40

Step-by-step explanation :

Hey Mate,

#Correction in Question : Kantabai bought 1.5 kg tea and 5 kg sugar from a shop. (Question from CBSE class 10)

Suppose,

The price of the tea per kg = X

The price of the sugar per kg = Y

Given Equation,

3X + 10Y = 1300        ..... (1)

2X + 7Y = 880            ....... (2)

Multiple Eq(1) with 2 & multiple (2) with 3

6X + 20Y = 2600        ..... (3)

6X + 21Y = 2640         .......(4)

Eq(4) - Eq(3)

Y = 40. (Put this value in Eq(1))

After solving both equation we will get the value of X and Y.

X = 300 = Price of Tea

Y = 40 = Price of Sugar

The price of Tea per kg is Rs. 300 Price of the Sugar per kg is Rs. 40