12. निम्न का मान ज्ञात किजिए-
10 + {26 - 15 X( 20 - 5 ÷
2 X 7-5 )} =?
priya7151:
this que is wrong
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Sol:10+{26 -15×(20-2.5×7-5)}
=10+{26-15×(20-17.5-5)}
=10+{26-15×(2.5-5)}
=10+{26-15×(-2.5)}
=10+{26-37.5}
=10+{-11.5}
=-1.5
Answer=-1.5
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