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Mr. Arivazhagan Ramachandran IAS Mentor | CSAT Specialist ✅ 9 Years of Teaching Experience in UPSC (CSAT) & TNPSC Aptitude ✅ Former CSAT Faculty at Soundar’s IAS Academy, Chennai For guidance, mentorship, and enquiries related to CSAT & TNPSC @iasarivu
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We expect this pattern across the entire Aptitude & Reasoning section for the 2027 CSAT.
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Consider the following Assertion and Reason:
Assertion: 15% discount on the marked price of an item is more than the discount of 10% on the marked price of the same item and subsequent (successive) discount of 5%.
Reason: The subsequent (successive) discount is on the discounted amount.
Which one of the following is correct with regard to the above Assertion and Reason?
(a) Both the assertion and the reason are individually true and the reason is correct explanation of the assertion.
(b) Both the assertion and the reason are individually true, but the reason is not a correct explanation of the assertion.
(c) Assertion is true, but Reason is false.
(d) Assertion is false, but Reason is true
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What is the missing term (X) in the sequence:
3,14,39,84,155,x?
(a) 224
(b) 238
(c) 258
(d) 264
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How many factors of the number number 2⁷×3⁴×5⁶×20⁵ are multiples of 60?
a) 352
b) 704
c) 1408
d) 460
B
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2026–2027 CSAT Mentorship Admissions Are Officially Closed!
A heartfelt thank you to each and every one of you for your overwhelming trust, belief, and support.
Your confidence in me is not just an admission—it is a responsibility that I proudly accept. I am committed to giving my very best to help you move one step closer to your dream.
This journey is no longer about preparation alone; it is about discipline, consistency, and success.
Together, let’s transform aspirations into achievements.
Thank you for believing in me.
Now, let’s believe in your success. 💙
— Arivazhagan Ramachandran
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If A is coded as 1, B as 3, C as 5 and so on, which of the following is the numerical value of the word ‘FAZED’ if the numerical value of ‘CABLE’ is 41?
a) 91 b) 92 c) 78 d) 79
D
Logic is 2n-1
here n is original place value of that letter
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🎯 2027 CSAT MENTORSHIP PROGRAMME – 2027 PRELIMS
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Find the equivalent flat discounts viz., 10%, 15% and 20% given on an article.
(a) 40.5%
(b) 38.2%
(c) 38.8%
(d) 61.2%
C
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Two alloys are formed by mixing metals A and B. The ratio by weight of A: B in the first alloy is 6:5 and that in second is 7:13. 29 kg of metal A must is melted along with 11 Kg of first alloy and 20 Kg of the second so as to produce a new alloy. Find percentage of metal B in the final alloy?
(a) 18%
(b) 20%
(c) 25%
(d) 30%
D
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The following question is based on the information given below:
1. The length, breadth and height of cuboidal shaped toy is 5cm, 4cm and 3cm respectively. It has been made by joining small cubes of dimensions 1cm× 1cm × 1cm.
2. The faces with dimension 5cm × 4cm are painted yellow in colour.
3. The faces with dimension 3cm × 4cm are painted black in colour.
4. The faces with dimension 5cm × 3cm are painted pink in colour.
How many of the small cubes will have three faces painted with three different colours?
(a) 12
(b) 8
(c) 6
(d) 10
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