Kerala PSC Maths Questions and Answers 21
This page contains Kerala PSC Maths Questions and Answers 21 for psc exam preparations in Malayalam and English.
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401. 20 മുട്ടകളുടെ വാങ്ങിയ വില 25 മുട്ടകളുടെ വിറ്റ തുകക്ക് തുല്യമായാൽ ലാഭമോ നഷ്ടമോ എത്ര ശതമാനം ?
Answer: 20% നഷ്ട്ടം
402. ഒരു സംഖ്യയെ 7 കൊണ്ട് ഹരിക്കുമ്പോൾ ഹരണഫലം 36 ശിഷ്ടം 8 കിട്ടുന്നുവെങ്കിൽ സംഖ്യ ഏത്?
Answer: 260
403. Raju has equal number of one rupee, five rupee and ten rupee notes with him. If he has Rs. 480 with him, what is the number of one rupee note?
Answer: 30
404. A ഒരു ജോലി 10 ദിവസം കൊണ്ടും, B 20 ദിവസം കൊണ്ടും, C 60 ദിവസം കൊണ്ടും ചെയ്തു തീർക്കും. എന്നാൽ മൂന്ന് പേരും ഒരുമിച്ചു ജോലി ചെയ്താൽ, എത്ര ദിവസം കൊണ്ട് ജോലി പൂർത്തിയാകും?
Answer: 6
405. റോഡ് : കിലോമീറ്റര്‍ : പഞ്ചസാര :?
Answer: കിലോഗ്രം
406. ജോണി 6000 ബാങ്കില്‍ നിക്ഷേപിച്ചു. രണ്ടു വര്‍ഷം കഴിഞ്ഞപ്പോള്‍ 6800 കിട്ടി എങ്കില്‍ ബാങ്ക് നല്‍കിയ വാര്‍ഷിക സാധാരണ പലിശ നിരക്ക് എത്ര ?
Answer: 10/3 %
407. Value of 1 + 2 + 3 +..............+ 20 is :
Answer: 210
408. A and B can finish a work 30 days if they work together. They worked together for 20 days and then B left. A finished the remaining work in another 20 days. In how many days A alone can finish the work?
Answer: 60
409. 504 can be expressed as a product of primes as
Answer: 2 × 2 × 2 × 3 × 3 × 7
410. In Kiran’s opinion, his weight is greater than 65 kg but less than 72 kg. His brother does not agree with Kiran and he thinks that Kiran’s weight is greater than 60 kg but less than 70 kg. His mother’s view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Kiran?
Answer: 67 kg
411. A library has an average of 510 visitors on Sundays and 240 on other days. What is the average number of visitors per day in a month of 30 days beginning with a Sunday?
Answer: 285
412. Arun obtained 76, 65, 82, 67 and 85 marks (out in 100) in English, Mathematics, Chemistry, Biology and Physics. What is his average mark?
Answer: 75
413. Suresh drives his car to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. What is his average speed for the whole journey ?
Answer: 37.5 km/hr
414. The sum of ages of 5 children born at the intervals of 3 years each is 50 years. Find out the age of the youngest child?
Answer: .4
415. What decimal of an hour is a second ?
Answer: 00027
416. a trader buys an article for Rs. 800 and sold it for Rs 900 then gain % is
Answer: 44
417. The ratio of ages of Monu and Sonu is 2:5. The difference in their age is 15 years. Then the age of Monu is
Answer: 10 years
418. . 18,24,30 എന്ന ശ്രേണിയിലെ എത്രാം പദമാണ് 414?
Answer: 67
419. Replace the question mark (?) in the following series? 241, 260, ?, 389, 465, 510
Answer: 298
420. ആദ്യത്തെ 20 ഇരട്ട സംഖ്യകളുടെ തുക ?
Answer: 420
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