APTITUDE TEST AND PREPARATION
APTITUDE TEST AND PREPARATION Aptitude Solved Problems Bright Zoom Maths, Question : 1 A cloth merchant sold half of his cloth at 20% profit and half of the remaining cloth at 20% loss and remaining at the cost price. In total transmission what will be his gain or loss? Answer: 5% Explanation: Let CP = 100 Half of the cloth at 20% profit, SP = 50 *120/100 = 60 Half of the remaing cloth at 20% loss, SP = 25 *80/100 = 20 Reaming cloth at CP, Therefore SP = 25 On total transaction SP = 60 + 20 +25 = 105 Profit% = 5% Question : 2 The distance between two points is 36km. A boat rows in still water at 6kmph, it takes 8hr less to cover dist in downstream in comparison to that in upstream. Find the rate of stream? Answer: 3 kmph Explanation: Time = distance * speed Difference between time taken to cover upstream and downstream is 8hr ( 36 / ( 6 - x )) - ( 36 / ( 6 + x )) = 8 36 ( 6 + x ) - 36 ( 6 - x ) = 8 ( 36 - x2) 36 ( 6 + x - 6 - x ) = 8 ( 36 - x2) 9x = 36 - x...