1.The average expenditure of a man for the first five months is RS. 120 and for the next seven months is Rs. 130. His monthly average income if he saves Rs. 290 in that year, is: (c)
(a) Rs. 160
(b) Rs. 170
(c) Rs. 150
(d) Rs. 140
2.A cricketer scored 190 runs in the first test and 358 runs in the second. How many runs should he score in the third test so that his average score in the three tests would be 360 runs? (d)
(a) 219
(b) 242
(c) 334
(d) None of these
3.The average salary of 21 workers in an office is Rs. 1700 per month. If the manager’s salary is added, the average becomes Rs. 3000 per month. The manager’s annual salary (in Rs.) is: (d)
(a) 24000
(b) 25200
(c) 45600
(d) None of these
4.In a coconut grove, (x+2) trees yields 60 nuts per year, x trees yield 120 nuts per year and (x-2) trees yield 180 nuts per year. If the average yield per year per tree be 100, find x. (a)
(a) 4
(b) 2
(c) 8
(d) 6
5.The average age of students in section A of 50 students is 14 years and the average age of students in section B of 30 students is 6 years. Find the average age of students in both sections taken together. (a)
(a) 11
(b) 13
(c) 12
(d) 14
