For the following questions answer them individually
If the sum of two numbers be multiplied by each number separately, the products so obtained are 247 and 114. The sum of the numbers is
The L.C.M. of three different numbers is 120. Which of the following cannot be their H.C.F.?
A number when divided by 49 leaves 32 as remainder. This number when divided by 7 will have the remainder as
In an examination a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 75 questions and secures 125 marks, the number of questions he attempts correctly is
The traffic lights at three different road crossings change after 24 seconds, 36 seconds and 54 seconds respectively. If they all change simultaneously at 10 : 15 :00 AM, then at what time will they again change simultaneously?
A can do a work in 12 days. When he had worked for 3 days, B joined him. If they complete the work in 3 more days, in how many days can B alone finish the work?
A and B can complete a piece of work in 8 days, B and C can do it in 12 days, C and A can do it in 8 days. A, B and C together can complete it in
X is 3 times as fast as Y and is able to complete the work in 40 days less than Y. Then the time in which they can complete the work together is
A copper wire is bent in the shape of a square of area 81cm . If the same wire is bent in the form of a semicircle, the radius (in cm) of the semicircle is
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