When x is subtracted from each of 21, 22, 60 and 64 the number is obtained, in this order, are in proportion. What is the mean proportional between (x+1) and (7x+8)?

जब x, 21, 22, 60 और 64 प्रत्येक में से घटाया जाता है, तो इस क्रम में प्राप्त संख्या, अनुपात में होती है। (X + 1) और (7x + 8) के बीच का मध्यानुपात क्या है?

 
 
 
 

The table shows the production of different types of cars by a company (in thousand) in 5 years.

years\Car A B C D E
2014 52 54 48 46 64
2015 47 45 53 50 45
2016 48 47 56 54 65
2017 43 50 57 67 63
2018 38 40 54 68 70

The average production of type D cars in 5 years is what percent less than the production of type E cars in 2018?

 
 
 
 

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