Mathmetics

ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

Q581.
The H.C.F. of two numbers is 11 and their L.C.M. is 693. If one of the numbers is 77, find the other.
                
1) 1) 909 2) 2) 119
3) 3) 66 4) 4) 99
5)5) None of these
Answer : 4) 99
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Q582.
A boat running downstream covers a distance of 24 kms in 4hrs while for covering the distance upstream it takes 6 hrs. What is the speed of the boat in still water ?
1) 5.5 km/hr 2) 6 km/hr
3) 3.5 km/hr 4) 4.5 km/hr
5)None of these
Answer : None of these
Explanation :  Ans. 5 km/hr
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Q583.
23 x 15 / 25 + 48.2 = -35 + ?
1) 97 2) 98
3) 95 4) 96
5) None of these
Answer : 97
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Q584.
(562 - 754) /6 = ? / (-5)
1) -120 2) 120
3) -160 4) 160
5)None of these
Answer : 160
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Q585.
5/11 of 55% of 1500 ?
1) 395 2) 392
3) 375 4) 372
5)None of these
Answer : 375
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Q586.
(35.2 x 15 x 4) / 12 + 20 = (?)2
1) (14)2 2) 14
3) 16 4) (14)1/2
5)None of these
Answer : 14
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Q587.
(3 x 4)2 x (3 x 6) / ( 9 x 5) = ?
1) 57.6 2) 59.6
3) 53.2 4) 51.2
5)None of these
Answer : 57.6
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