If 1/3 of a number exceeds its 2/7 by 1. find the number and answer in easy and explained way each of the following
Answers
Answered by
485
let the number =x
1/3 of a number = x/3
2/7 of the number = 2x/7
given
1/3 of a number exceeds its 2/7 by 1
x/3 - 2x/7 =1
do the lcm
lcm = 3*7 =21
(7x-6x)/21 =1
⇒x/21 =1
∴ x= 21
required number = x =21
1/3 of a number = x/3
2/7 of the number = 2x/7
given
1/3 of a number exceeds its 2/7 by 1
x/3 - 2x/7 =1
do the lcm
lcm = 3*7 =21
(7x-6x)/21 =1
⇒x/21 =1
∴ x= 21
required number = x =21
mpathak228:
Thanks friend you explained very nicely
Answered by
198
Answer:
Step-by-step explanation:
1/3 of a number exceeds 2/7 of the same number by one, find the number.
Solution:
(1/3)x = (2/7)x + 1
(1/3 - 2/7)x = 1
(7 - 6)x/21 = 1
x/21 = 1
x = 21
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