Latest D.E.SHAW Aptitude Question SOLUTION: You have ten big vats of 10-gram coins. Except that one of the vats contains counterfeit coins, which weigh only 9 grams. You have an accurate (numerical) scale. In one wieghing, d
You have ten big vats of 10-gram coins. Except that one of the vats contains counterfeit coins, which weigh only 9 grams. You have an accurate (numerical) scale. In one wieghing, determine which vat contains the counterfeit coins. What is the smallest number of coins this requires?
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?