Practice Question and Answer
8Q: Rajesh rows in still water with a speed of 4.5 kmph to go to a certain place and comes back. Find his average speed for the whole journey, if the river is flowing with a speed of 1.5 kmph? 3040 05b5cc67ee4d2b4197774c245
5b5cc67ee4d2b4197774c245- 12 kmphfalse
- 24 kmphtrue
- 36 kmphfalse
- 48 kmphfalse
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Answer : 2. "4 kmph"
Explanation :
Answer: B) 4 kmph Explanation: Let the distance in one direction = k kms Speed in still water = 4.5 kmph Speed of river = 1.5 Hence, speed in upstream = 4.5 - 1.5 = 3 kmph Speed in downstream = 4.5 + 1.5 = 6 kmph Time taken by Rajesh to row upwards = k/3 hrs Time taken by Rajesh to row downwards = k/6 hrs Now, required Average speed =Total distanceTotal speed = 2kk3 + k6 = 2k x 186k + 3k = 4 kmph Therefore, the average speed of the whole journey = 4kmph.
Q: Who is the author of the book titled "My Mother My Hero"?
3039 060743f2be170a5231dc44ced
60743f2be170a5231dc44ced- 1Achyuta Samantatrue
- 2PNMurthyfalse
- 3BiswaBhushanfalse
- 4R Gopalakrishnanfalse
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Answer : 1. "Achyuta Samanta"
Q: Sujan walked 8 metre towards the North and then turned to the right and walked 16m. Then he turned to his left and walked 16 metre. How far is he now from his starting point?
3039 05d26f9d17c723a1518e41e10
5d26f9d17c723a1518e41e10- 132 mfalse
- 223 mfalse
- 313 mtrue
- 416 mfalse
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Answer : 3. "13 m"
Q: Find out the number of circles in the given figure:
3039 05e7efa054e941d3661d44783
5e7efa054e941d3661d44783- 118false
- 219true
- 316false
- 420false
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Answer : 2. "19"
Q: Rajan's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is 125 years. What is the difference between the present ages of Rajan's daughter and Rajan's mather ? 3039 05b5cc72ce4d2b4197774f773
5b5cc72ce4d2b4197774f773- 132 yearsfalse
- 248 yearsfalse
- 362 yearsfalse
- 450 yearstrue
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Answer : 4. "50 years"
Explanation :
Answer: D) 50 years Explanation: Let Rajan's present age be 'x' years.=> Then his daughter's present age is = x/3 years.His mother's present age = 13x/9 yearsNow, according to the question,x + x/3 + 13x/9 = 125=> x = 125x9/25 = 45Therefore, required difference = 13x/9 - x/3 = 13x - 3x/9 = 10x/9=> 10 x 45/9 = 50 years.
Q: The resolution of a printer is measured in 3039 05b5cc626e4d2b4197774b869
5b5cc626e4d2b4197774b869- 1DPItrue
- 2Megabitsfalse
- 3Hertzfalse
- 4Inchesfalse
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Answer : 1. "DPI"
Explanation :
Answer: A) DPI Explanation: Dots per inch (DPI, or dpi) is a measure of spatial printing or video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (2.54 cm).
Q: Who has become the first women umpire to officiate men's test match?
3038 56002740ac3affd2d698a98c9
6002740ac3affd2d698a98c9- 1Kim Cottonfalse
- 2Lauren Agenbagfalse
- 3Sue Redfernfalse
- 4Claire Polosaktrue
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Answer : 4. "Claire Polosak"
Q:The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
She watched / the thief who / steal the purse / in the bus.
3038 0649ab3511a612ce001f67d84
649ab3511a612ce001f67d84- 1the thief whofalse
- 2in the busfalse
- 3steal the pursetrue
- 4She watchedfalse
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Answer : 3. "steal the purse"
Explanation :
The correct form should be "the thief who stole the purse." The verb "steal" should be replaced with "stole" to match the past tense.