Find the 28383rd term of the series: 123456789101112..........
a) 3 b) 4 c) 9 d) 7
Answer should be a) 3.
We need to count the no. of digits: 1-9 = 9 10-99 = 90*2 = 180 100-999 = 900*3 = 2700 1000-9999 = 9000*4 = 36000
Thus, the number would be a 4 digit no. No. of digits till 999 is 2889. We need the 28383rd digit, i.e. we need to find the 25494th digit starting from 1000 (28383-2889 = 25494).
Since, we know it'll be a 4 digit number, we can find the last number by dividing 25492/4 (not 25494, as we're trying to find the number now. Once we find the number, we can find the next two digits to get to the 25494th digit).
25492/4 = 6373rd number starting from 1000. It means the number is 1000+6373-1 = 7372. Till 7372, we have got 25492+2889 = 28381 digits. Next number will be 7373, we're interested in only the 2nd number as then we'll reach the 28383rd digit, and this number is 3.
Please take the pains of posting the questions as well, as not every puy who wishes to contribute on this thread, has the book. Besides, others don't have to flip through the pages and can check the problem here itself.
I am a newbie and have started pretty late for the xm. But I hope to give my best still!
Though, some of the answers by Arun Sharma puzzle me , I still feel it has good questions.
Need your help with the following questions :
LOD I
55. If 2a) 6 b) 7 c) 8 d) 4 e) None of these
74. Three mangoes, four guavas and five watermelons cost Rs 750. Ten watermelons, six mangoes and 9 guavas cost Rs 1580. What is the cost of six mangoes, ten watermelons and 4 guavas? a) 1280 b) 1180 c) 1080 d) cannot be determined
76. The cost of four mangoes, six guavas and sixteen watermelons is Rs 500, while the cost of seven mangoes, nine guavas and nineteen watermelons is Rs 620. What is the cost of one mango, one guava and one watermelon? a) 120 b) 40 c) 150 d) cannot be determined
77. For the question above, what is the cost of mango? a) 20 b) 14 c) 15 d) cannot be determined
78. The following is known about three real numbers x,y and z. -4a) -16 Thanks
I am a newbie and have started pretty late for the xm. But I hope to give my best still!
Though, some of the answers by Arun Sharma puzzle me , I still feel it has good questions.
Need your help with the following questions :
LOD I
55. If 2a) 6 b) 7 c) 8 d) 4 e) None of these
74. Three mangoes, four guavas and five watermelons cost Rs 750. Ten watermelons, six mangoes and 9 guavas cost Rs 1580. What is the cost of six mangoes, ten watermelons and 4 guavas? a) 1280 b) 1180 c) 1080 d) cannot be determined
76. The cost of four mangoes, six guavas and sixteen watermelons is Rs 500, while the cost of seven mangoes, nine guavas and nineteen watermelons is Rs 620. What is the cost of one mango, one guava and one watermelon? a) 120 b) 40 c) 150 d) cannot be determined
77. For the question above, what is the cost of mango? a) 20 b) 14 c) 15 d) cannot be determined
I completely agree with you...but its not that i m lazy in posting the questions, its the syntax of the questions for which i avoided...anyways, here are the questions:
Q11)a number xy is multiplied by another no ab and the result comes as pqr, where r=2y, q=2(x+y) and p=2x where x,y11 13 31 22
Q12) denotes the greatest integer value just below x and {x} its fractional value. The sum of ^3 and{x}^2 is -7.91. find x. -2.03 -1.97 -2.97 -1.7
I am a newbie and have started pretty late for the xm. But I hope to give my best still!
Though, some of the answers by Arun Sharma puzzle me , I still feel it has good questions.
Need your help with the following questions :
LOD I
74. Three mangoes, four guavas and five watermelons cost Rs 750. Ten watermelons, six mangoes and 9 guavas cost Rs 1580. What is the cost of six mangoes, ten watermelons and 4 guavas? a) 1280 b) 1180 c) 1080 d) cannot be determined
Thanks
here in this question.... 3M + 4G + 5M = 750 ...(1) 6M + 9G + 10M = 1580...(2) multiply (1) with 2 we have 6M + 8G + 10M = 1500...(3) subtract (3) from (2) we have G = 80 now 6M + 9G + 10M = 1580 6M + 4G + 10M = 1580 - 5G therefore 6M + 4G + 10M = 1580 - 5*80 6M + 4G + 10M = 1180..
I am a newbie and have started pretty late for the xm. But I hope to give my best still!
Though, some of the answers by Arun Sharma puzzle me , I still feel it has good questions.
Need your help with the following questions :
LOD I
76. The cost of four mangoes, six guavas and sixteen watermelons is Rs 500, while the cost of seven mangoes, nine guavas and nineteen watermelons is Rs 620. What is the cost of one mango, one guava and one watermelon? a) 120 b) 40 c) 150 d) cannot be determined
77. For the question above, what is the cost of mango? a) 20 b) 14 c) 15 d) cannot be determined
Thanks
here we have 4M + 6G + 16W = 500..(1) * 7 7M + 9G + 19W = 620..(2) * 4
This is my first post in PG.. but i have been a regular visitor to this site.. I came across some qns in the quant book by Arun sharma which i cudnt solve.. so help me out with these qns
1. Find the maximum value of n such that 50! is perfectly divisible by 2520^n 2. Find the maximum value of n such that 50! is perfectly divisible by 12600^n 3. find the number of divisors 0f 1080 excluding the through out divisors which are perfect squares
6) 2 oranges, 3 bananas and 4 apples cost Rs. 15. 3 oranges, 2 bananas and 1 apple cost Rs. 10. I bought 3 oranges, 3 bananas and 3 apples. How much did I pay?
7) John bought 5 mangoes and 10 oranges together for Rs. 40. Subsequently, he returned 1 mango and got 2 oranges in exchange. The price of an orange would be:
1) Rs. 1 2) Rs. 2 3) Rs. 3 4) Rs. 4
16) The total expenses of a boarding house are partly fixed and partly varying linearly with the number of boarders. The average expense per boarder is Rs. 700 when there are 25 boarders and Rs. 600 when there are 50 boarders. What is the average expense per boarder when there are 100 boarders.
6) 2 oranges, 3 bananas and 4 apples cost Rs. 15. 3 oranges, 2 bananas and 1 apple cost Rs. 10. I bought 3 oranges, 3 bananas and 3 apples. How much did I pay?
7) John bought 5 mangoes and 10 oranges together for Rs. 40. Subsequently, he returned 1 mango and got 2 oranges in exchange. The price of an orange would be:
1) Rs. 1 2) Rs. 2 3) Rs. 3 4) Rs. 4
16) The total expenses of a boarding house are partly fixed and partly varying linearly with the number of boarders. The average expense per boarder is Rs. 700 when there are 25 boarders and Rs. 600 when there are 50 boarders. What is the average expense per boarder when there are 100 boarders.
1. Find the maximum value of n such that 50! is perfectly divisible by 2520^n 2. Find the maximum value of n such that 50! is perfectly divisible by 12600^n 3. find the number of divisors 0f 1080 excluding the through out divisors which are perfect squares
A train travels nonstop at an average speed of 75 km/h. While the same train travels at an average speed of 60 km/h when it stops at intermediate stations. find the time in minutes per hour for which the train stops.
A train travels nonstop at an average speed of 75 km/h. While the same train travels at an average speed of 60 km/h when it stops at intermediate stations. find the time in minutes per hour for which the train stops.
1) 10 min 2) 12 min 3) 14 min 4) 18 min
Train takes 60/75 of an hour = 48 minutes to travel 60 kms.
