11. A natural number has been divided into two parts in the ratio 7: 11. If the difference
of two parts is 20, find the number and the two parts.
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3
Answer:
90
Step-by-step explanation:
ratio = 7:11
difference = 20
number= 7x+11x = 18x
the no. is-
11x-7x=20
4x=20
x=5
the number is 18x = 18 x 5 = 90
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