Quantitative aptitude Question for all banking Bank PO,Clerk,IBPS PO,Railway,SSC,PSUs,IAS,OAS ,C-SAT Exams

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

Q1.	In a triangle ABC, the sides AB and AC have been produced to D and E. Bisectors of angle CBD and angle BCE meet at O. If angle A = 64°, then angle BOC is -

Answer : 58°

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Q2.	In triangle ABC, if D and E are the points on the sides AB and AC respectively such that DE parallel to BC and if AD = x , DB = x - 2 , AE = x + 2 and EC = x -1. then find the value of x .

Answer : 5
Explanation :

Since, DE parallel to BC

so, (AD / DB) = (AE / EC)

or {x / (x – 2)} = {(x + 2) / (x – 1)}

or x(x – 1) = (x + 2) (x – 1)

or x² – x = x²– 4

or x = 4 .

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