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NTSE Previous Year Question Papers Below I am providing you some questions of from question paper of NTSE and attaching a PDF attachment which has detail information regarding this that you can down load for free: Five year hence, father's age will be 3 times then the age of his son. Five years ago, father was 7 times as old as his son. Find their present age ? (a) 10, 40 (b) 5, 50 (c) 3, 30 (d) None of these Ans. Let father, age = x & son's age = y as per the problem x = 7y ….(i) & after 5 year F.A = (Present ag(e) + 5 = (x + 5) + 5 = x + 10 S.A = (Present ag(e) + 5 = (y + 5) = y + 10 as per the question x + 10 = 3 (y + 10) (i) = x – 3y = 20 (ii) from equation (i) and (ii) on solving x = 40 & y = 10. IF x + y = 12, the maximum value of the product of xy is (a) 26 (b) 36 (c) 30 (d) None of these Ans. (b) A man buys mangoes paying one variety Rs. 320 to 240 & another variety of 640 to 400. He mixes & sells them at16 mangoes for Rs. 30. Find the percentage of profit? C.P of 240 mangoes = Rs. 320 C.P of 640 mangoes = Rs. 640 C.P of 640 mangoes = Rs. 960 (on variety) S.P pf 16 mangoes = Rs. 30 S.P pf 640 mangoes = − = × / 1200 640 16 30 Profit = 1200 – 960 = 240 So percentage of profit = V 25 100 960 240 = Two taps A & B take 20 minutes & 30 minutes to fill a cistern independently. The cistern can filled in 40 minutes with the taps A & B & the waste pipe are open altogether. If the taps are closed, calculate the time taken by the discharging outlet to empty the full cistern. (a) 10 minutes (b) 15 minutes (c) 20 minutes (d) None of these Ans. Let the volume of cistern = V Volume of water filled by tap A in 1 minute = Volume of water filled by tap B in 1 minute = Taps (A + (B) together can fill in 1minute = When the discharging outlet is open these taps can fill water in one minute = The outlined empties the cistern in 1 minute = So the time taken by the outlet to discharging the whole water volume v is = The price of sugar has decreased by 20%, by what% are the consumption of the sugar be increased in a house so that there is no decrease in the expenditure on the sugar Ans. Let the sugar consumption was x kg Total expenditure of sugar = wx Decrease in price = 25% So new cost of sugar = x Now, let w1kg of sugar is consumed for the same total expenditure in wx. This wx = w1x % increase in consumption NTSE Previous Year Question Papers As you want to get the National Talent Search Examination Previous Year Question Papers, so here I am providing the following Question Papers: Last edited by Udai Kant; December 9th, 2019 at 05:36 PM. |