COMPETITIVE CRACKER

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1.Larry's mother have three brothers. First one is March. Second is April. Then the third one is..... 1.November 2.May 3.June 4.October 2.If DOCTOR is written as EMDRPP.Then PATIENT is written as 1.QZRJCOU 2.QARJCUO 3.QZRAJCO 4.QRAZCOU 3.Find the value of ?      EARPHONE : EAR :: GLOVES : ? 1.NOSE 2.FEET 3.HAND 4.STOMACH 4.In a darkroom and you have one match left. what do you light the first the newspaper ,the candle ,the lamp? 1.The newspaper 2.The lamp 3.The candle 4.The match

स्नेह की उम्र अपने पिता के उम्र का 1/6 है 10 साल के बाद स्नेह के पिता की उम्र विमल के उम्र की दूनी हो जाएगी यदि विमल का 8 वी जन्मदिन 2 साल पहले मनाया गया , तो स्नेह की वर्तमान उम्र है - [ p.o. 1993] 1- 30 ...

Aptitude - Boats and Streams 1.In one hour, a boat goes 11 kmph along the stream and 5 kmph against the stream. The speed of the boat in still water (in kmph) is : A. 3 kmph B. 5 kmph C. 8 kmph D. 9 kmph 2.A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place ? A. 2.4 km B. 2.5 km C. 3 km D. 3.6 km 3.A man's speed with the current is 15 kmph and the speed of the current is 2.5 kmph. The man's speed against the current is : A. 8.5 kmph B. 9 kmph C. 10 kmph D. 12.5 kmph 4.A boat covers a certain distance downstream in 1 hour, while it comes back in 1.5 hour. If the speed of the stream be 3 kmph, what is the speed of the boat in still water ? A. 12 kmph B. 13 kmph C. 14 kmph D. 15 kmph 5.In a stream running at 2 kmph, a motor boat goes 10 km upstream and back again to the starting point in 55 minutes. Find the speed of the motor boat in still water. A. 22 kmph...

1 .Down stream/Up stream In water, the direction along the stream is called downstream. And, the direction against the stream is called upstream. 2.If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then: Speed downstream = (u + v) km/hr. Speed upstream = (u - v) km/hr. 3.If the speed downstream is a km/hr and the speed upstream is b km/hr, then: Speed in still water =1/2(a + b) km/hr. Rate of stream =1/2(a - b) km/hr.

Problems on Boats and Streams(Set 1) - Solved Examples 1. A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is: A. 8.5 km/hrB. 10 km/hr. C. 12.5 km/hrD. 9 km/hr 2. A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is: A. 10B. 6 C. 5D. 4 3. In one hour, a boat goes 14 km/hr along the stream and 8 km/hr against the stream. The speed of the boat in still water (in km/hr) is: A. 12 km/hrB. 11 km/hr C. 10 km/hrD. 8 km/hr 4. A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is: A. 1 km/hr.B. 2 km/hr. C. 1.5 km/hr.D. 2.5 km/hr. 5. A boatman goes 2 km against the current of the stream in 2 hour and goes 1 km along the current in 20 minutes. How long will it take to go 5 k...

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Time and Work (Question1)A can do a piece of work in 5 days and B can do the same work in 10 days.In how many days work should be complete if he work together. 10/3 3/10 3/20 2(10/3) (Question 2) Ramesh can do a piece of work in 10 days and Mohan can do the same piece of work in 15 days.How long will they take to do it together? 6 days 8 days 4 days 3.33 days (Question 3)A,B and C together complete a work in 4 days.A alone can do the same work in 12 days and C alone can do the work in 10 days.How long will B alone can do the work? 18 days 20 days 15 days 12 days

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