| (i) \[22\times (-36)+(-42)\div (-3)9\times 56\times (-8)\] |
| (ii) \[26-22+21\div (-7)43-11-13\] |
| (iii) \[(-16)\div [(-13)+(-3)]12\div [(-3)-0]\] |
A)
(i) (ii) (iii) > < =
B)
(i) (ii) (iii) < < >
C)
(i) (ii) (iii) > < >
D)
(i) (ii) (iii) = > <
Correct Answer: C
Solution :
(i) \[22\times (-36)+(-42)\div (-3)\] \[=22\times (-36)-42\times \frac{1}{-3}\] \[=22\times (-36)+14=-792+14=-778\] Also, \[9\times 50\times (-8)=-4032\] So, \[-778\,\,\,-4032\] \[\therefore \] \[22\times (-36)+(-42)\div (-3)\,\,9\times 56\times (-8)\] (ii) \[26-22+21\div (-7)\] \[=26-22+21\times \frac{1}{-7}=26-22-3=26-25=1\]Also, \[43-11-13=43-24=19\] So, \[1\,\,19\] \[\therefore \] \[26-22+21\div (-7)\,\,43-11-13\] (iii) \[-16\,\,\div \,(-13-3)+(-3)\] \[=-16\div (-13-3)=(-16)\div (-16)=1\] Also,\[12\div [(-3)-0]=12\div (-3)=12\times \frac{1}{-3}=-4\] \[\therefore \] \[-16\,\,\div \,[(-13)+(-3)]\,\,12\div [(-3)-0]\]
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