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For The Mathematically Inclined

Anil Saigal
03/12/2011

PROBLEM # 1
There are 8 ounces in a 1/2 pound. How many ounces are in 7 3/4 lbs?

A. 12 ounces
B. 86 ounces
C. 119 ounces
D. 124 ounces
E. 138 ounces

PROBLEM #2
If f(x) = g(u) and u = u(x) then

(A) f '(x) = g '(u)
(B) f '(x) = g '(u) . u '(x)
(C) f '(x) = u '(x)
(D) None of the above 


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Please send your solutions to mr.asaigal@gmail.com.

Use Problem Solutions M-031711 as the subject line. Please include your full name in the text of the main message. Everyone with the right answer will be acknowledged in the next issue of Lokvani.

Please do not post your solution in Post Comments. No credit will be given for solutions not sent to anil@lokvani.com.

If you need clarification on any problem, please contact anil@lokvani.com.

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Problems from 03/03/11

PROBLEM # 1
C, A and T are numbers  between 0 and 9. 
CAT = (C + A + T) × C × A × T
Find C, A and T that satisfy the above equation

SOLUTION 1
135.
 


PROBLEM #2

ABCDEF × 3 = BCDEFA and A,B,C, D,E and F are numbers between 1 and 9.  What are possible values of ABCDEF?

SOLUTION 2
142857 and 285714.

Congratulations to Aseem Chandawarkar, Sitaram Chandawarkar and Akshay Gowrishankar, who were winners of the last set of puzzles.



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