Kerala PSC Maths Questions and Answers 9
This page contains Kerala PSC Maths Questions and Answers 9 for psc exam preparations in Malayalam and English.
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161. If ₹.19488 is distributed to 3 partners X,Y and Z in the ratio 5:2:7 respectively. What is the total of Y and Z amount?
Answer: 12528
162. 12 2 =144 ആയാല് 1.44 ന്റെ വിലയെത്ര ?
Answer: 0.12
163. തുടർച്ചയായ രണ്ട് ഇരട്ട സംഖ്യകളുടെ വർഗങ്ങളുടെ വ്യത്യാസം 84.സംഖ്യകൾ ഏതൊക്കെ?
Answer: 20,22
164. 2 men and 6 boys can do in 4 days a piece of work which would be done again in 4 days by 4 men and 3 boys. One man will do it in—
Answer: 24 days
165. If tan A = n sin B and sin A = m sin B, then the value of cos2 A is—
Answer: m2/n2
166. 7 : 49 : 56 : : 14 : 196 : 210 : : … ? …
Answer: 21 : 441 : 462
167. Find the missing number in the series 357,180,91,46,-----------11
Answer: 23
168. For which value of k, the number 3k5656 is a multiple of 9 :
Answer: 5
169. A boat goes 30 km upstream and 44 km downstream in 10 hrs. In 13 hrs, it can go 40 km upstream and 55 km downstream. The speed of the boat in still water is:
Answer: 8 km/h
170. Speed of a man is 10 km/h in still water. If the rate of current is 3 km/h, then the effective speed of the man upstream is:
Answer: 7 km/h Sol. Speed of man in still water = 10 km/h Speed of current = 3 km/h ∴ Speed of man upstream = 10 – 3 = 7 km/h
171. What is the greatest number of four digits which is divisible by 15, 25, 40 and 75 ?
Answer: 9600
172. What is the least multiple of 7 which leaves a remainder of 4 when divided by 6, 9, 15 and 18 ?
Answer: 364
173. Successive discount of 10% and 20% are equivalent to a single discount of
Answer: 28%
174. 4003 x 77 - 21015 = ? x 116
Answer: 2476
175. If one third of one fourth of number is 15, then three tenth of that number is?
Answer: 54
176. Find the smallest number which when divided by 8, 12, 14 leaves remainder 6 in each case.
Answer: 174
177. . 1200, 480, 192, ----
Answer: 76.8
178. 100.05 ന്റെ 40% ന്റെ 1/ 5 എത്ര?
Answer: 8.0040
179. മേശ യുടെ വില 800 രൂപയും കസേ രയുടെ വില 200 രൂപയും ആണ് എങ്കില് കസേ രയുടെ വില മേശയുടെ വില യുടെ എത്ര ശതമാന മാണ ്?
Answer: 25
180. 3 പുരുഷന്മാരും 4 ആണ്കുട്ടി കളും ഒരു ജോലി 8 ദിവസം കൊണ്ട് ചെയ ്തു തീര്ക്കും. അതേ ജോലി 4 പുരുഷന്മാരും 4 ആണ്കു ട്ടി കളും 6 ദിവസം കൊണ്ട് ചെയ ്തു തീര്ക്കും എങ്കില് 2 പുരു ഷന്മാരും 4 ആണ്കു ട്ടി ക ളും ഇതേ ജോ
Answer: 12
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