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Question 1
A two digit number’s sum is 16. If we reversed the number then new number is greater than original number by 18, find the original number ?
Question 2
A two-digit number is 26 more than two times of the number obtained by interchanging its digits. If the product of digits in the two-digit number is 16, then what is the number ?
Question 3
The time taken by a boat to travel 40 km downstream is the same as time taken by it to travel 10 km upstream. If speed of the stream is 3 km/h, then how much time (in hours) will it take to travel a distance of 200 km in still water?
Question 4
Under what condition do the equation 6x-ky+7=0 and 2x-2y+w=0 have a unique solution?
Question 5
The system of equation 
and 3x + 6y =9 has
and 3x + 6y =9 has - 189 attempts
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Dec 17CDS & Defence
