In an increasing sequence of 10 consecutive integers…
May 6, 2015
In an increasing sequence of 10 consecutive integers… Solution: In solving this problem we must first remember that when we have 10 consecutive integers we can display those in …
A dealer originally bought 100 identical batteries at a total…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that 100 batteries cost a TOTAL of q dollars. We are also given that EACH battery was sold at 50% above …
The total cost for Company X to produce a batch…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: The problem first asks us to calculate the gross profit. The profit equation is as follows: Profit = Revenue – Cost In this particular …
If n is an integer greater than 6, which of the following must be…
May 6, 2015
GMAT OFFICIAL GUIDE PS – Solution: To determine which answer choice MUST be divisible by 3 we need to determine answer choice(s) in which there is at least one …
Leona bought a 1-year, $10,000 certificate…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We use the compound interest equation: Future Value = (Present Value)(1 + r/n)^nt where r is the annual interest rate, n is the number …
In the Johnsons’ monthly budget, the dollar amounts allocated…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this question, it will be best to first express the given ratio using variable multipliers. Thus, we have: Household Expenses : Food …
Working simultaneously at their respective constant rates, Machine A…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: This problem is what we would call a combined worker problem, where Work (of machine 1) + Work (of machine 2) = Total Work …
M is the sum of the reciprocals of the consecutive integers…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s first analyze the question. We are trying to find a potential range for M, and M is equal to the sum of the …