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Ans 2:
Ans 6:
Class : Class 6
The answer should be D not A. In the first line they have used BODMAS, but in the second they have not and if we use BODMAS we will get option d.
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Ans 10:
Class : Class 9
approach to this problem is not given correctly in solution. thought the answer given is correct.
Ans 13:
Class : Class 7
QUESTION IS NOT WRONG IN THIS WE HAVE TO SEE THE OPTION AND THEN DO IT . LIKE WE CAN ASSUME THAT TOTAL AMOUNT WAS OPTION B THEN DO THE CALLCULATION BUT FOR B WE DO NOT GET THE AMOUNT LEFT 1330