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Question 1
A boat ravels 36 km upstream in 6 hours and 20km downstream in 4 hours. Find the speed of the boat in still water and the speed of water current. (In kmph)
Question 2
In what time will compound interest on Rs.320 at 
per annum compounded annually be Rs. 85?
per annum compounded annually be Rs. 85?
Question 3
A tall cylinder container with circular based of radius 18 cm contains a good quantity of water. Metal balls each of radius 0.9 cm are immersed in it. How many balls are required to raise the water level by 3cm?
Question 4
Find cube root of 4826809
Question 5
How many 5-letter words with or without meaning, can be formed out of the letters of the word, ‘DIRECTLY’, if repetition of letters is not allowed?
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Mar 24CDS & Defence
