Math, asked by karshpreet025, 4 months ago

1) If the cost of 7 books is Rs210 then the cost of 10 books will be Rs_.
2)Half of 7kg is ___kg.
3)Simplify:
-(7m2 - 4m2 +3n2)
4)Solve the following:
x2 -5x2 + 3x2
5)Subtract the sum of --1878 and 878 from 2000.

Answers

Answered by srishtisingh267

0

Answer:

1. 300Rs

2. 3.5kg

3. ................

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