1.The average of 20 numbers is 28. Later, it was pointed out that value of one the numbers was wrongly taken as 72 instead of 87. What is the correct average? (5)
1) 32
2) 25.5
3) 30.75
4) 31.25
5) None of these
2. A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Find his average after 17th inning. (1)
1) 39
2) 35
3) 37
4) 36
5) 38
3. The average of runs of a cricket player of 10 innings was 32. How many runes must be made in his next innings so as to increase his average of runs by 4? (3)
1) 73
2) 79
3)76
4) 71
5) None of these
4. A man spends Rs.1600 per month on an average for the first three months, Rs.1550 for next four months and Rs.1800 per month for the last five months and saves Rs.5200 a year. What is his average monthly income? (2)
1) Rs.2050
2) Rs.2100
3) Rs.1950
4) Rs.2200
5) None of these
5. The average salary of all the workers in a workshop is Rs.8000. The average salary of 7 technicians is Rs.12000 and the average salary of the rest is Rs.6000. The total number of workers in the workshop is ____ (4)
1) 15
2) 23
3) 25
4) 21
5) None of these
