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For The Mathematically Inclined

Anil Saigal
02/26/2014

PROBLEM #1

I have ten boxes which I want to pack into crates. Each crate can carry a maximum of 25 kg. But I only have three crates, and the total weight of the boxes is 75kg:

15 kg, 13kg, 11 kg, 10 kg, 9 kg, 8 kg, 4 kg, 2 kg, 2kg, 1 kg

How can I pack the boxes into the crates?

PROBLEM #2
A person drove 120 miles at 40mph, then drove back the same 120 miles at 60mph.What was the average speed for the trip.

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

Use Problem Solutions M-022714 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 02/13/14

PROBLEM #1
Use the numerals 1, 9, 9 and 6 exactly in that order to make the following number: 28.

Solution
1+9+√(9)×6 = 28

PROBLEM #2
Use 8 exactly eight times to make 1000. You can use any mathematical symbols.

Solution
888 + 88 + 8 + 8 + 8   =  1000

Congratulations to Abhimanyu Bhargava and Saba Lateef, who were the winners of the last set of puzzles. Here are two puzzles for one and all!



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