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Since for some reason I cannot view the forum the-official-guide-for-gmat-quantitative-review-268444.html where the question has already been discussed, I am posting this question on a new forum.
This is question 86 from "GMAT Official Guide 2019 Quantitative Review". The question is "What is the sum of the odd integers from 35 to 86 inclusive?" The answer is A 1,560
On the GMAT test day, you won't be allowed to use calculator and you have like 2 minutes per question, so what are the tricks to quickly and easily solving this problem other than adding 35+37+39+41+43+45+47+49+51+53+55+57+59+61+63+65+67+69+71+73+75+77+79+81+83+85??? Adding those numbers one by one by hand will take too long, that you lose time on other questions.
This is question 86 from "GMAT Official Guide 2019 Quantitative Review". The question is "What is the sum of the odd integers from 35 to 86 inclusive?" The answer is A 1,560
On the GMAT test day, you won't be allowed to use calculator and you have like 2 minutes per question, so what are the tricks to quickly and easily solving this problem other than adding 35+37+39+41+43+45+47+49+51+53+55+57+59+61+63+65+67+69+71+73+75+77+79+81+83+85??? Adding those numbers one by one by hand will take too long, that you lose time on other questions.
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25 Jul 2019, 21:52
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ironsheep
Discussed here: what-is-the-sum-of-odd-integers-from-35-to-85-inclusive-221343.html
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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
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