The average of 11 numbers is 45. The average of first 6 is 42 and last 6 is 48. Find the 6th number. a) 44 b) 45 c) 46 d) 47
A train 250 m long passes a platform 150 m long in 20 seconds. Find its speed in km/hr. a) 54 b) 60 c) 72 d) 90 101pdf4ssc -
If ( a:b = 2:3, b:c = 4:5 ), find ( a:c ). a) 6:15 b) 8:15 c) 2:5 d) 4:5 The average of 11 numbers is 45
A man can row 15 km/hr in still water. If the stream speed is 3 km/hr, how much time will he take to go 72 km downstream? a) 3 hrs b) 4 hrs c) 5 hrs d) 6 hrs a) 44 b) 45 c) 46 d) 47
Find the simple interest on ₹8,000 at 12% per annum for 2 years 4 months. a) ₹2,240 b) ₹2,260 c) ₹2,280 d) ₹2,300
