Q1. If x + 1/x = 7, find x⁴ + 1/x⁴.
यदि x + 1/x = 7 है, तो x⁴ + 1/x⁴ ज्ञात कीजिए।
15 minutes Ultra Tough SSC CGL Math Set 11
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Sample Questions from 15 minutes Ultra Tough SSC CGL Math Set 11
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Q2. If a : b = 3 : 4 and b : c = 5 : 6, and a + b + c = 177, find c.
यदि a : b = 3 : 4 और b : c = 5 : 6 है, तथा a + b + c = 177 है, तो c ज्ञात कीजिए।
Q3. In an AP, the sum of the 8th and 12th terms is 80, and the 15th term is 60. Find the sum of the first 20 terms.
एक AP में 8वें और 12वें पदों का योग 80 है, और 15वाँ पद 60 है। पहले 20 पदों का योग ज्ञात कीजिए।
Q4. Three positive numbers are in GP. Their sum is 26 and their product is 216. Find the sum of their squares.
तीन धनात्मक संख्याएँ GP में हैं। उनका योग 26 और गुणनफल 216 है। उनके वर्गों का योग ज्ञात कीजिए।
Q5. Find the least positive integer N such that N ≡ 1 (mod 6), N ≡ 2 (mod 7), and N ≡ 3 (mod 8).
सबसे छोटी धनात्मक संख्या N ज्ञात कीजिए जिसके लिए N ≡ 1 (mod 6), N ≡ 2 (mod 7), और N ≡ 3 (mod 8) हो।
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