Question

21. A rectangle and a parallelogram have equal areas. The base
of the parallelogram is 20cm and the altitude is 6cm. Which
one of the following cannot be the ratio of dimensions of
the rectangle? (The dimensions are of integral values)
(A) 6:5 (B) 4:3 (C) 15:2 (D) 30:1

pls answer this question​

Answer 1

Answer: The answer is 7:5

the options according to me are wrong

the options have to be

A.7:5

B.40:3

rest all question is correct

Step-by-step explanation:

Area of the rectangle = Area of parallelogram

                                    =20cm×6m=120cm  2

                                    =2

 

Now,                  

Ratio =7:5             Ratio =40:3

Product =35            Product =120

-------------------------------------------------------------

Ratio =15:2           Ratio =30:1

Product =30            Product =30

∴ Ratio =7:5 does not match with the condition as 120 is not divisible by 35.