एक कक्षा में(a²-a-20) बालिका तथा(a²-9a+20) बालक है! इनको अलग अलग समान संख्या के समूह में बांटा जाता है क्या कीजिए कि न्यूनतम कितने समूह बनेंगे तथा प्रत्येक समूह में कितने बालक तथा बालिकाओं रखेंगे
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HELLO DEAR,
In a class (a²-a-20) girl and child (a²-9a + 20)! They are grouped into different groups of equal numbers, what should be the minimum number of groups and how many children and girls in each group
in a group of girls,
a²-a-20=0
a²-5a+4a-20=0
=> a(a-5) -4(a-5)=0
=> (a-5) (a-4)=0
=> a=5 or a=4
in group of boys
a² -9a + 20 = 0
=> a² - 5a - 4a +20=0
=> a( a-5) -4(a-5) =0
=> (a-4) (a-5) =0
=> (a-4)(a-5)=0
a=4 or a=5
hence, minimum no. of groups be 4
and no. of and 5 girls and children are in there
In a class (a²-a-20) girl and child (a²-9a + 20)! They are grouped into different groups of equal numbers, what should be the minimum number of groups and how many children and girls in each group
in a group of girls,
a²-a-20=0
a²-5a+4a-20=0
=> a(a-5) -4(a-5)=0
=> (a-5) (a-4)=0
=> a=5 or a=4
in group of boys
a² -9a + 20 = 0
=> a² - 5a - 4a +20=0
=> a( a-5) -4(a-5) =0
=> (a-4) (a-5) =0
=> (a-4)(a-5)=0
a=4 or a=5
hence, minimum no. of groups be 4
and no. of and 5 girls and children are in there
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