The total marks obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What are the average marks obtained by him in Physics and Mathematics together ?

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The total marks obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What are the average marks obtained by him in Physics and Mathematics together ?

A60

B120

C40

DCannot be determined

Akilesh Kharvi ? May 20 '2017 at 11:36

Answer is : 60

Explanation:

 \(\text{Required average = } \frac{120}{2}= 60\)

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A 180-metre long train crosses another 270-metre long train running in the opposite direction in 10.8 seconds. If the speed of the first train is 60 kmph., what is the speed of the second train in kmph ?

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A 180-metre long train crosses another 270-metre long train running in the opposite direction in 10.8 seconds. If the speed of the first train is 60 kmph., what is the speed of the second train in kmph ?

A80

B90

C150

DCannot be determined

ranjith ? Mar 3 '2020 at 21:31

Correct answer is: 90

Explanation:

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