There are six numbers 30, 72, 53, 68, x and 87, out of which x is unknown. The average of numbers is 60. What is the value of x?
(a) 40 (b) 45 (c) 50 (d) 55
There are six numbers 30, 72, 53, 68, x and 87, out of which x is unknown. The average of numbers is 60. What is the value of x?
(a) 40 (b) 45 (c) 50 (d) 55