chain rule formula - Wikitechy https://www.wikitechy.com/interview-questions/tag/chain-rule-formula/ Interview Questions Mon, 06 Sep 2021 07:24:51 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png chain rule formula - Wikitechy https://www.wikitechy.com/interview-questions/tag/chain-rule-formula/ 32 32 If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web ? https://www.wikitechy.com/interview-questions/chain-rule/if-7-spiders-make-7-webs-in-7-days-then-1-spider-will-make-1-web/ https://www.wikitechy.com/interview-questions/chain-rule/if-7-spiders-make-7-webs-in-7-days-then-1-spider-will-make-1-web/#respond Tue, 17 Aug 2021 21:52:15 +0000 https://www.wikitechy.com/interview-questions/?p=1977

If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web ?

A. 1

B. 7/2

C. 7

D. 49

Answer : C. 7

Explanation:

Let the required number days be x.
Less spiders, More days (Indirect Proportion)
Less webs, Less days (Direct Proportion)
Hence we can write as,

If 7 spiders make 7 webs in 7 days
    • 1 x 7 x x = 7 x 1 x 7
    x = 7.

 

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