find the othernumber
Answers
Answer:
140 is the number
Step-by-step explanation:
let the number be x say
2/5 of number is ..2x/5
1/7 of the same is...x/7
by given Data...
- 2x/5-x/7=36
- 35 is LCM
- (14x-5x)/35 =36
- 9x=36×35
- x. =4×35
- x=140
Answer:
140
Step-by-step explanation:
Let the number be x.
2/5th of a number or x is 2x/5.
1/7th of the number or x is x/7.
The problem says 2/5th of x or 2x/5 exceeds 1/7th of the same number which means x/7 by 36.
so , according to the problem
2x/5 -x/7=36
To compute this we need to find L.C.M of 5 and 7 which is actually the product of these two number in this case.
so 5*7 =35
(2x*7 - x*5)/ 35 =36
Product of 2x *7 comes down to 35 and product of x*5 is 5x.
so, (14x-5x)/35= 36
9x/35 = 36
By taking 35 to R.H.S it gets multiplied to 36.
so, 9x= 36 * 35
x= (36* 35)/9
x= 4* 35
x= 140.
Hence the number given here is 140.