A mathematics teacher posed the following problems to her students: A. Simrat pays Rs. 60,000 as rent for three months. How much will she have to pay for a whole year if the rent per month remains the same? B. The cost of three dozen bananas is Rs. 45. Calculate the number of bananas that can be purchased for Rs. 12.50. C. Joey and Jenny are going to school. Joey started walking before Jenny. When Joey was at the third block, Jenny was at the first block. If both are walking at the same speed, then where would Jenny be if Joey is at the ninth block? Which of the following is correct with respect to the above three questions?

Question

Examsnet · Accepted Answer

Correct Answer is : A and B are daily life problems based on unitary method.

Problem	Explanation
A	Simrat pays Rs. 60,000 as rent for 3 months. The rent per month is Rs. 60,000/3 = Rs. 20,000. So, the rent for a whole year (12 months) will be Rs. 20,000 x 12 = Rs. 240,000.
B	The cost of 3 dozen bananas (3 x 12 = 36) is Rs. 45. So, the cost of 1 banana is Rs. 45/36 = Rs. 1.25. The number of bananas that can be purchased for Rs. 12.50 is 12.50/1.25 = 10.
C	The third problem, C, is not based on the unitary method. It is a problem of relative speed.

CTET Paper II (Mathematics and Science) 20 Aug 2023 Solved Paper